1. School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
2. Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
3. Hong Kong Association for Integration of Chinese-Western Medicine, Hong Kong, China
4. Virginia University of Integrative Medicine, 9401 Mathy Dr, Fairfax, VA 22031, USA