Author Affiliation: Member of the Cochrane Nursing Care Field (CNCF), School of Nursing, University of Medicine and Dentistry, New Jersey Centre for Evidence Based Practice, Newark, New Jersey.
This is a summary of a Cochrane Review. The full citation and the names of the researchers who conducted the review are listed in the reference section.
The author reports no conflicts of interest.
Correspondence: Susan B. Fowler, PhD, RN, CNRN, FAHA, the New York Eye and Ear Infirmary, 310 E 14th St, New York, NY 10003 (firstname.lastname@example.org).