1. The Chinese University of Hong Kong; Division of Epidemiology, The Jockey Club School of Public Health and Primary Care; Hong Kong SAR China
2. The Chinese University of Hong Kong; Division of Epidemiology, School of Public Health and Primary Care; Shatin Hong Kong New Territories China
3. Chinese University of Hong Kong; Jockey Club School of Public Health and Primary Care; Prince of Wales Hospital Shatin NT, Hong Kong Hong Kong SAR
4. National University of Singapore; Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine; Singapore Singapore
5. West China Hospital, Sichuan University; Chinese Cochrane Center, Chinese Evidence-Based Medicine Center; No. 37, Guo Xue Xiang Chengdu Sichuan China 610041
6. School of Chinese Medicine, Southern Medical University; Chinese Medicine; No. 1838 Guangzhou Main North Road Guangzhou Guangdong China 510515