1. Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, P. R. China
2. Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, P. R. China
3. Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, P. R. China
4. Hong Kong Hospital Authority, Hong Kong Special Administrative Region, P. R. China