1. Endocrinology, Diabetes & Metabolism; Qualigenics Diabetes Centre; Hong Kong SAR China
2. Department of Medicine and Therapeutics; Chinese University of Hong Kong, Prince of Wales Hospital; Hong Kong SAR China
3. Department of Medicine; The University of Hong Kong, Queen Mary Hospital; Hong Kong SAR China
4. Department of Medicine and Geriatrics; Our Lady of Maryknoll Hospital; Hong Kong SAR China