Chang, Jianbo1,2; Guan, Zhen3; Chi, Iris4; Yang, Ke-Hu1,2; Bai, Zheng-Gang1,2
1School of Basic Medicine Sciences, Evidence-Based Medicine Centre of Lanzhou University, Lanzhou City, China
2Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province
3School of Public Health, Lanzhou University, Lanzhou City, China
4Golden Age Association Frances Wu Chair for Chinese Elderly, School of Social Work, University of Southern California, Los Angeles, California, USA
Correspondence: Zheng-Gang Bai, School of Basic Medicine Sciences, Evidence-Based Medicine Centre of Lanzhou University, Lanzhou City, China. Fax: +86 931 8912076; e-mail: [email protected]
doi: 10.1097/01.XEB.0000444660.59606.d2