1. Institute of Chinese Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
2. Department of Paediatrics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
3. Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
4. Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
5. State Key Laboratory of Phytochemistry and Plant Resources in West China, (Partner Laboratory in the Chinese University of Hong Kong), The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China