Half of the causes of morbidity and mortality in the United States are linked to behavioral and social factors.1 Yet, only 3% of U.S. citizens adhere to abstaining from smoking, maintaining a healthy weight, eating adequate amounts of fruits and vegetables, and exercising regularly; further, almost 10% of U.S. citizens adhere to none of these components.2 Changing the health behaviors of U.S. citizens has the greatest potential of any current approach for decreasing morbidity and mortality and for improving the quality of life across diverse populations.3
Physicians are in a unique position to motivate and assist patients in behavior change. Emerging evidence shows that patients who receive counseling from their practitioners are more likely to change behavior and to adhere to plans of care. Research has demonstrated that brief clinician counseling is effective in tobacco cessation, reduction of problem drinking, and increased condom use.4–6 Effective interventions for other unhealthy lifestyle behaviors such as eating poorly and exercising too little or not at all typically involve behavior counseling techniques (e.g., self-monitoring) in addition to multiple methods of communication to assist patients in undertaking behavior changes.7,8 Despite the ability of physicians to impact patient behavior through appropriate interventions, and despite government goals (documented in Healthy People 2010) to increase rates of physician counseling on health behaviors,9 several studies have documented a paucity of health behavior counseling by physicians: fewer than 45% of adults with hyperlipidemia, hypertension, obesity, or diabetes mellitus receive diet counseling, and fewer than 30% receive physical activity counseling.10 Physicians identify patients’ smoking status in 68% of visits, but they counsel about smoking in only 20% of these visits.11 Physicians report that both a lack of knowledge and discomfort in counseling are barriers to behavioral change counseling.12–15 Similarly, medical students and primary care residents report being ill-prepared to counsel patients on preventive issues.16–18
Medical students receive necessary training to prepare them for their future roles as physicians. The Institute of Medicine (IOM) report, Improving Medical Education: Enhancing the Behavioral and Social Science Content of Medical School Curricula, lists inclusion of health risk behaviors and principles of behavior change in the medical student curriculum as a high priority.19 Yet, a divergence exists between the call for medical student education on behavior change and the availability of such programs in U.S. medical school curricula. After an extensive literature search, we could find no published report of a comprehensive, clinically integrated medical school course on facilitating behavior change. Determining the prevalence of behavior change curricula in U.S. medical schools through either the Curriculum Management and Information Tool (CurrMIT) or published curricular surveys is difficult; the inclusion of the topics of preventive medicine, communication skills, or counseling for risk reduction does not necessarily imply training in facilitating behavior change. Published reports of tobacco cessation20 and other prevention counseling curricula are generally limited in scope. The courses they describe usually occur in the first or second year of medical school, and most are not integrated with clinical experiences. Although excellent communication is one of the critical factors in facilitating behavior change, few reports describe as components of clinical skills training either motivational interviewing (a patient-centered yet directive behavior change counseling approach through which the practitioner helps patients explore their ambivalence, elicits “change talk,” and collaboratively determines behavior change plans)21–24 or broad communication skills training (e.g., asking open-ended questions, building rapport, exploring patient’s beliefs and fears, listening and facilitating).25–27 Training in both motivational interviewing and broad communication skills prepare students for behavior change counseling. One school reports the incorporation of behavior change concepts in a longitudinal curriculum during the first 16 months of undergraduate medical training, but the instructional methods are limited to lecture and discussion, and the authors concede that “until they have some real clinical experience, some medical students don’t know what to do with parts of the [social and behavioral science] material.”28
An Opportunity for Change
In August 2004, University of Medicine and Dentistry of New Jersey–New Jersey Medical School (UMDNJ-NJMS) implemented a comprehensive four-year curriculum entitled the Jubilee Curriculum. An integral component of the Jubilee Curriculum was a course called Health Beliefs and Behavior (HBB) dedicated to training students in behavior change techniques. The HBB course built on the communication and behavioral medicine instruction in the revised first- and second-year curriculum. Initially planned as a two-week, stand-alone course in the third year, the curriculum committee concluded that HBB would be most effective if integrated with ongoing clinical activity. Consequently, they modified a two-week ambulatory block in the internal medicine (IM) clerkship, which was a component of the revised 10-week IM experience, so as to incorporate the two-week HBB curriculum. Accordingly, they expanded the two-week ambulatory IM block to run for a four-week period with the time divided each week between ambulatory IM clinical experiences and HBB. The result was a mandatory, 60-hour HBB course given through rotating, four-week intervals to third-year medical students concurrent with the ambulatory portion of the IM clerkship (other third-year clinical clerkships included surgery, family medicine, pediatrics, obstetrics–gynecology, and psychiatry). Consequently, each of the four weeks consisted of 15 hours devoted to the HBB curriculum and five half-day ambulatory sessions (20 hours) in IM. To create an intimate dynamic, the curriculum committee limited the number of students to approximately 9 to 15 per month, with the course repeated 12 times throughout the academic year, allowing all students to participate by year’s end. One of us (E.M.), an internist, served as course director, provided the majority of the teaching, and received funding from the office of education to devote 50% of her time to this initiative. Given the interdepartmental nature of the course, faculty from the IM, family medicine, psychiatry, and pediatrics departments actively participated throughout the four weeks.
Course Development and Description
Curriculum development relied on extensive review of the literature, consultations with content experts, and a local needs analysis, which one of us (E.M.) conducted through faculty interviews, resident focus groups, and community leader focus groups. Content experts included health behavior researchers; health psychologists; clinical psychologists, psychiatrists, pediatricians, internists, and family practitioners all with a special interest in behavior change; registered dieticians; nurse practitioners; masters and doctors of public health; and preventive medicine researchers from UMDNJ-NJMS, UMDNJ School of Public Health, UMDNJ-School of Health Professions, and Rutgers University. An HBB committee, chaired by the HBB course director and one of us (E.M.), and composed of faculty representatives from participating medical school departments and the UMDNJ School of Public Health, provided guidance. The HBB committee met monthly for hour-long meetings five times prior to the start of the course, and several follow-up meetings were held after the class began to update members on its progress.
The 2004 IOM report on improving U.S. medical education19 strongly influenced the HBB course. The IOM report prioritizes the following behavioral and social science domains for inclusion in medical school curriculum:
* Physician–patient interactions,
* Patient behavior,
* Mind–body interactions in health and disease,
* Physician role and behavior,
* Social and cultural issues in health care, and
* Health policy and economics.
Given that effective behavior change includes all of these domains, the HBB curriculum encompasses each area, with the largest component (20 hours, 41%) devoted to “Patient behavior” (Figure 1).
Classroom instruction is integrated with clinical and personal experiences. Because students alternate between the classroom and ambulatory experiences, they can immediately apply the concepts and techniques they are learning in class to their ambulatory experiences, and then they can discuss in the classroom those ambulatory experiences and the quantity and quality of counseling that occurs in the clinical setting. Assignments (see below) further encourage exploration of HBB concepts outside the classroom.
During the first week, we establish an integrated and experiential tone for the HBB course. Students learn and apply the biopsychosocial framework through a case-based method, and subsequently throughout the course they gather cases from their ambulatory experiences to present in the classroom. In a workshop with role-play, students learn and practice brief motivational interviewing, a time-efficient form of motivational interviewing developed for use in the busy clinic setting.29 Later in the course, students complete two decision balance sheets while counseling patients in their ambulatory experiences (Chart 1). Decision balance is one method used to resolve ambivalence and promote behavior change. Using the patient’s perspective, the benefits and costs of changing a risky health behavior are compared with the benefits and costs of maintaining the status quo.30 The first week also includes a lecture on medically unexplained illness followed by a group interview of a consenting patient with such an illness. A psychologist and family medicine physician facilitate the group interview and then debrief the students. During the debriefing, students explore the psychological, physical, social, economic, spiritual, and cultural interactions that impact the patient’s experience of illness, and the students gain insight into their own personal biases in treating patients with medically unexplained illnesses. Students discuss the morbidity and mortality caused by risky health behaviors, the social determinants of health, and basic models of health—all of which they apply to their clinical and personal experiences. A smoking counseling day, during which students learn the health effects of smoking, the pharmacologic and behavioral tools to quit smoking, and the “Stages of Change” model, caps the first week. Students then apply newly learned concepts in a teaching observed standardized clinical examination (TOSCE) focusing on smoking cessation, and they receive feedback on their counseling skills from a standardized patient, peers, and faculty. The day is tied to ambulatory experiences through completion of at least two smoking cessation forms performed on patients seen during the course.
Several first-week activities continue through the remainder of the course. To highlight the difficulty that patients experience in adhering to physician recommendations, we created a student-as-patient exercise, in which students receive a three-week-duration patient prescription (i.e., placebo pills, blood pressure checks, urine dipsticks, or a diet journal are assigned randomly). Students record their adherence and are required to comment on the experience in their reflection journal. To promote an appreciation for the difficulty of behavior change, students perform a behavior change exercise, in which they self-select a behavior they wish to change, attempt to change that behavior, and report back to the class on their experiences.
The ensuing weeks are structured similarly to the first week with HBB concepts woven together in the classroom and applied to clinical experiences. Throughout the course, the patient-centered approach is emphasized. Table 1 shows the IOM domains, corresponding HBB learning objectives, and instructional methods. The multiple pedagogical approaches, including role-play, standardized patient, and guest patient appearances (Figure 2), emphasize active learning. Experiences in the IM ambulatory subrotation further enhance the active learning aspect of the course. Student case presentations of patients with risky health behaviors, poor adherence, or unconventional health beliefs (e.g., that illness is caused by impurities in the body that must be purged, or that colic can be prevented through avoidance of extremes of temperature and wind31,32) provide a conduit into exploring patients’ explanatory models of illness, the students’ own personal biases as practitioners, and the application of health models. The HBB course emphasizes the Health Belief Model, Social Cognitive Theory, and Stages of Change Model. HBB students apply these models to patient cases both to increase their insight into reasons the patient continues a risky health behavior and to help clarify a direction for counseling the patient. For instance, the Health Belief Model maintains that the likelihood of taking a recommended preventive action depends on multiple factors, including the individual patient’s perceived susceptibility to a condition, perceived severity of the condition, perceived benefits of the action, perceived barriers to taking action, and the threat of disease. Counseling strategies can target these areas and provide a cue to action, thus activating readiness to change. Similarly, students apply the Stages of Change Model by determining the patient’s readiness to change and then using appropriate counseling strategies accordingly. Through applying Social Cognitive Theory, students appreciate the reciprocal interplay of behavior, personal factors, and environmental factors in addition to the importance of self-efficacy (a person’s belief in his or her capability to change a risky health behavior). Using their patient cases, students construct biopsychosocial care plans that address medical problems and counseling in the context of the individual patient’s spiritual, sociocultural, economic, family, and psychological milieu.
The course aims always to connect HBB material directly to the students’ lives and clinical rotations. The students keep a reflection journal, in which they collect their reactions to clinical and classroom experiences, especially when the past and concurrent clinical experiences are at odds with the patient-centered approach they learn in the HBB course. We explicitly discuss the hidden curriculum as students reveal the tensions they experience, and the reflection journals offer students another mechanism to synthesize this disconnect. Students learn about the connection of mind and body, and then they experience biofeedback and yoga exercises. After students review the importance of self-care, they construct their individual wellness plans. We discuss behavior change counseling barriers including physician discomfort, lack of knowledge, pressure for time, and limited reimbursement. The overall course and its activities help the students become more aware of behavior change counseling techniques and more comfortable extending this counseling to their patients, and, to address time and reimbursement concerns, we describe methods sensitive to physicians’ time constraints that support behavior change including the use of physician extenders, follow-up phone calls, and referrals to community programs. Students practice effective interviewing and counseling approaches, such as brief motivational interviewing, that maximize time efficiency. We briefly discuss coding and emerging pay-for-performance initiatives that address the barrier of less reimbursement for counseling.
The course culminates with a community project. Working in teams, students investigate the impact of a selected risky health behavior on the individual and society, investigate community resources, contact or visit those programs, determine the health models used in the program, and present their findings to the class in a final group project. For example, one student group reported on hookah smoking, which is social tobacco smoking using shared water tube apparatuses. The students learned about the rising popularity of hookah bars, particularly among their peer group; fascinated, they visited a hookah bar in the local area. They reported on recent research on the health effects of hookah smoking. Although there were no programs specifically for hookah smoking, they visited a local tobacco cessation program and observed a Stages of Change Model being used.
Students receive an independent HBB grade separate from their IM clerkship grade. We use multiple modalities to assess student performance in the HBB course. We assess students through midcycle and final exams that include multiple-choice and essay questions (55%), through class participation including case presentations (15%), through the community group project (30%), through their reflection journals (Pass/Fail), and through completion of the decision balance sheets and smoking cessation forms (Pass/Fail). The students receive formative feedback through team-based learning quizzes, role-play exercises, and the smoking cessation TOSCE.
We distributed end-of-rotations surveys to all students, and nonfaculty staff collected them. The surveys were anonymous and voluntary. Questions were based on a five-point Likert-type scale (5 = to a very high degree, 1 = not at all). Five medical interns reviewed the survey for readability and comprehension. All students but one (n = 149) completed surveys during the academic year 2006–2007. We obtained IRB approval from UMDNJ for this project. Table 2 reports mean and standard deviation values that resulted from the 2006–2007 survey. Overall, these third-year students reported an improved ability to recommend health promotion and behavioral change strategies to their patients in addition to enhanced understanding of the course’s main tenets.
Success in Teaching Behavior Change
Altering unhealthy behavior of Americans has the greatest potential of any current approach for improving health in the United States.3 We created the HBB curriculum specifically to address this need. Throughout the course, we extensively and successfully integrated concepts promoted in the IOM report, Improving Medical Education: Enhancing the Behavioral and Social Science Content of Medical School Curriculum.19
The course emphasizes a collaborative, patient-centered counseling approach, which respects the patient’s beliefs and attempts to understand the patient’s perspectives. Research has demonstrated that such a patient-centered approach improves patient adherence and facilitates behavior change.33,34 Therefore, the course stresses the interplay of psychiatric, social, cultural, spiritual, family, and community forces on health beliefs and behavior.
The course endeavors to not only instill knowledge but also to positively impact attitudes, improve counseling skills, and promote the use of behavior change tools. Students learn firsthand about community resources available while reinforcing their knowledge of health models. Self-care instruction not only benefits the students in the short-term but also might help future patients in the long-term by enhancing future counseling. Physicians who practice healthy habits are more likely to counsel on those habits,35 and physicians who spend an extra 30 seconds talking about their own healthy behavior are more believable to patients.36
The extensive groundwork for the course, which included stakeholder meetings, HBB committee meetings, and researching and contacting resources within and outside of the medical school, was critical to its success. The course director observed, at a minimum, the first two iterations of all class sessions and offered feedback to course faculty. Having monthly student evaluations of the rotations, obtaining faculty feedback from the course director, and encouraging honest critique from students during postcourse debriefing sessions helped us problem-shoot and improve the course. Flexible, open-minded faculty committed to the course’s success enabled us to improve the course rapidly and continually throughout the first year. For instance, lectures evolved to include more patient examples and applications. We shortened some sessions to allow for more practice opportunities, and we lengthened the biofeedback and yoga experiential sessions.
The placement of the course in the third-year IM clerkship is ideal. Whereas most medical schools teach behavioral/social science topics and communication skills in the first two years with no formal reinforcement,19 the HBB course builds on knowledge and skills acquired in the first two years. The synergy created through the combination of a rich clinical context in the ambulatory experiences and the health behavior education in the HBB classroom permits a deeper understanding of the impact and complexity of health behavior and behavior change. Practice opportunities and ample discussion of student perceptions of their counseling successes and pitfalls advance counseling skills.
At the completion of the HBB course, students believed that they possessed the tools necessary to assist patients in behavior change, and they reported both an increased ability to identify appropriate counseling techniques and an increased ability to use learned tools. They reported improved understanding of the patient-centered approach and other course concepts. Because barriers to physician counseling include physician discomfort and lack of knowledge, the approaches and techniques learned in the course, measured in increased self-perceived ability, should translate into increased use of behavior counseling. Further studies are needed to confirm this hypothesis and to determine whether the effect is sustained in the fourth year of medical school, during residency, and beyond. The outcome measure was student perceptions; additional objective measurements such as precourse, postcourse, and delayed postcourse OSCEs would also track results. Anecdotally, we noted an increased sophistication of the student cohorts as the year progressed, as reflected by increasingly rich discussion of patient cases, health models, and biopsychosocial plans of care. Interestingly, the first two cohorts of students seemed to rely more on their life experiences outside of medicine as a construct for understanding course concepts, whereas later cohorts referenced experiences from their clinical rotations. Formally studying this anecdotal observation would be beneficial because it would further support the need to integrate patient experiences, past or present, into a behavior change curriculum.
We do acknowledge some limitations of the course. Although aspects of this course can easily be incorporated in most medical school curricula, the low student-to-faculty ratio requires significant institutional support. The heterogeneous patient population at UMDNJ-NJMS, a state-supported tertiary referral center with student ambulatory experiences in inner-city clinics, Veterans Affairs clinics, and private offices, provides a strong construct for discussion of economic and other social influences on behavior. The course may require modification in schools with more homogeneous patient populations. Finally, development and implementation of an HBB-type curriculum requires a high degree of interdepartmental collaboration.
To the best of our knowledge, the present manuscript is the first report of a comprehensive course with related clinical experiences dedicated to teaching the theory and practice of behavior change. Third-year students at UMDNJ-NJMS completing the HBB course report enhanced understanding of the course’s main tenets and improved ability to recommend health promotion and behavioral strategies to their patients. Future studies are needed to determine whether this change in attitudes and increased confidence in using behavioral change tools translates into students’ increased use of behavior change techniques now and in their future practices.
1McGinnis JM, Foege WH. Actual causes of death in the United States. JAMA. 1993;270:2207–2212.
2Reeves MJ, Rafferty AP. Healthy lifestyle characteristics among adults in the United States, 2000. Arch Intern Med. 2005;165:854–857.
3Koop EC. Health promotion and disease prevention in clinical practice. In: Woolf SH, Jonas S, Lawrence RS, eds. Health Promotion and Disease Prevention in Clinical Practice. Baltimore, Md: Williams & Wilkins; 1996.
5Fiore MC, Bailey WC, Cohen SJ, et al. Smoking Cessation Clinical Practice Guideline No. 18. Rockville, Md: U.S. Department of Health and Human Services, Agency for Healthcare Policy and Research; 1996. AHCPR Pub No. 96-0692.
6Kamb ML, Fishbein M, Douglas JM, et al. Efficiency of risk reduction counseling to prevent human immunodeficiency virus and sexually transmitted diseases. JAMA. 1998;280:1161–1167.
7Mullen PD, Simons-Morton DG, Ramírez G, Frankowski RF, Green LW, Mains DA. A meta-analysis of trials evaluating patient education and counseling for three groups of preventive health behaviors. Patient Educ Couns. 1997;32:157–173.
8Whitlock EP, Orleans CT, Pender N, Allan J. Evaluating primary care behavioral counseling interventions: An evidence-based approach. Am J Prev Med. 2002;22:267–284.
9Office of Disease Prevention and Health Promotion. U.S. Department of Health and Human Services. Healthy People 2010. Available at: (http://www.healthypeople.gov
). Accessed March 26, 2009.
10Ma J, Urizar GG Jr, Alehegn T, Stafford RS. Diet and physical activity counseling during ambulatory care visits in the United States. Prev Med. 2004;39:815–822.
11Thorndike AN, Regan S, Rigotti NA. The treatment of smoking by US physicians during ambulatory visits: 1994 2003. Am J Public Health. 2007;97:1878–1883.
12Kushner RF. Barriers to providing nutritional counseling by physicians: A survey of primary care practitioners. Prev Med. 1995;24:546–552.
13Walsh JM, Swangard DM, Davis T, McPhee SJ. Exercise counseling by primary care physicians in the era of managed care. Am J Prev Med. 1999;16:307–313.
14Sherman SE, Hershman WY. Exercise counseling: How do general internists do? J Gen Intern Med. 1993;8:243–248.
15Orleans CT, George LK, Houpt JL, Brodie KH. Health promotion in primary care: A survey of US family practitioners. Prev Med. 1985;14:636–647.
16Scott CS, Neighbor WE. Preventive care attitudes of medical students. Soc Sci Med. 1985;21:299–305.
17Rubin JD, Sobal J, Moran MT. Health promotion beliefs and practices of fourth-year medical students. Am J Prev Med. 1990;6:106–111.
18Park ER, Wolfe TJ, Gokhale M, Winickoff JP, Rigotti NA. Perceived preparedness to provide preventive counseling: Reports of graduating primary care residents at academic medical centers. J Gen Intern Med. 2005;20:386–391.
19Cuff PA, Vanselow NA, eds. Improving Medical Education: Enhancing the Behavioral and Social Science Content of Medical School Curricula. Washington, DC: Institute of Medicine of the National Academies; 2004.
20Spangler JG, George G, Foley KL, Crandall SJ. Tobacco intervention training: Current efforts and gaps in US medical schools. JAMA. 2002;288:1102–1109.
21White LL, Gazewood JD, Mounsey AL. Teaching students behavior change skills: Description and assessment of a new motivational interviewing curriculum. Med Teach. 2007;29:e67–e71.
22Martino S, Haeseler F, Belitsky R, Pantalon M, Fortin AH 4th. Teaching brief motivational interviewing to year three medical students. Med Educ. 2007;41:160–167.
23Poirier MK, Clark MM, Cerhan JH, Pruthi S, Geda YE, Dale LC. Teaching motivational interviewing to first-year medical students to improve counseling skills in health behavior change. Mayo Clin Proc. 2004;79:327–331.
24Brown RL, Oriel K. Teaching motivational interviewing to first-year students. Acad Med. 1998;73:589–590.
25Haq C, Steele DJ, Marchand L, Seibert C, Brody D. Integrating the art and science of medical practice: Innovations in teaching medical communication skills. Fam Med. 2004;36(suppl):s43–s50.
26Dubé CE, O’Donnell JF, Novack DH. Communication skills for preventive interventions. Acad Med. 2000;75(7 suppl):s45–s54.
27Hook KM, Pfeiffer CA. Impact of a new curriculum on medical students’ interpersonal and interviewing skills. Med Educ. 2007;41:154–159.
28Satterfield JM, Mitteness LS, Tervalon M, Adler N. Integrating the social and behavioral sciences in an undergraduate medical curriculum: The UCSF essential core. Acad Med. 2004;79:6–15.
29Rollnick S, Mason P, Butler C. Health Behavior Change: A Guide for Practitioners. Edinburgh, UK: Churchill Livingstone; 1999.
30Miller WR, Rollnick S. Motivational Interviewing: Preparing People for Change. New York, NY: Guilford Press; 2002.
31Smitherman LC, Janisse J, Mathur A. The use of folk remedies among children in an urban black community: Remedies for fever, colic, and teething. Pediatrics. 2005;115:e297–e304.
32Snow LF. Traditional health beliefs and practices among lower class black Americans. West J Med. 1983;139:820–828.
33Smith RC. Interviewing. In: Smith RC. Patient Centered Interviewing: An Evidence Based Method. 2nd ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 2002.
34Williams GC, Frankel RM, Campbell TL, Deci EL. The science of the art of medicine: Research on the biopsychosocial approach to health care. In: Frankel RM, Quill TE, McDaniel SH, eds. The Biopsychosocial Approach: Past, Present, Future. Rochester, NY. University of Rochester Press; 2003.
35Frank E, Rothenberg R, Lewis C, Fielding BF. Correlates of physicians’ prevention-related practices. Findings from the Women Physicians’ Health Study. Arch Fam Med. 2000;9:359–367.
36Frank E, Brevan J, Elon L. Physician disclosure of health personal behaviors improves credibility and ability to motivate. Arch Fam Med. 2000;9:287–290. References cited in Table 1 only.
37Smith RC. Patient-Centered Interviewing: An Evidence-Based Method. 2nd ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 2002.
38Rosengren DB, Baer JS, Hartzler B, Dunn CW, Wells EA. The video assessment of simulated encounters (VASE): Development and validation of a group-administered method for evaluating clinician skills in motivational interviewing. Drug Alcohol Depend. 2005;79:321–330.
40Prochaska JO, DiClemente CC, Norcross JC. In search of how people change: Applications to addictive behaviors. Am Psychol. 1992:47;1102–1114.
41Glynn TJ, Manley MW. How to Help Your Patients Stop Smoking: A National Cancer Institute Manual for Physicians. Bethesda, Md: Smoking and Tobacco Control Program, National Cancer Institute, U.S. Department of Health and Human Services, Public Health Service, National Institutes of Health; 1990. NIH Publication No. 90-3064.
42Schumaker SA, Schron EB, Ockene JK, McBee WL, eds. The Handbook of Health Behavior Change. 2nd ed. New York, NY: Springer Publishing Co.; 1998.
43Glanz K, Rimer BK, Lewis FM, eds. Health Behavior and Health Education: Theory, Research, and Practice. 3rd ed. San Francisco, Calif: Jossey-Bass; 2002.
44Frankel RM, Quill TE, McDaniel SH, eds. The Biopsychosocial Approach: Past, Present, Future. Rochester, NY. University of Rochester Press; 2003.
45Meyer M, Raikes J, Reeve D. The New Medicine [video]. New York, NY: Middlemarch Films and Twin Cities Public Television; 2006.