2 School of Public Health, Sun Yat-Sen University, Guangzhou, China.
3 Baoan Central Hospital of Shenzhen, Shenzhen, China.
4 School of Nursing, The Hong Kong Polytechnic University, Hong Kong SAR, China.
5 Joint Research Centre for Primary Health Care, The Hong Kong Polytechnic University, Hong Kong SAR, China.
6 Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hong Kong SAR, China.
7 State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China.
8 Centre for Health Education and Health Promotion, The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
9 Editor-in-Chief, Hong Kong Medical Journal.
10 School of Public Health, Fudan University, Shanghai, China.
11 The Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
12 School of Public Health, Peking University, Beijing, China.