1. Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong.
2. Phase 1 Clinical Trial Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong.
3. Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong.
4. Medtronic Diabetes, Northridge, California, USA.