1. Department of Acupuncture, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
2. School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
3. Department of Acupuncture, Yantai Hospital of Traditional Chinese Medicine, Yantai, China
4. Catholic Health System Internal Medicine Training Program, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York
5. Jockey Club School of Public Health and Primary Care, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong