1. Gastroenterology and Hepatology Unit, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
2. Endocrinology Unit, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
3. Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Special Administrative Region of China
4. Asia Diabetes Foundation, Hong Kong, Special Administrative Region of China