1. Chinese Clinical Trial Registry (Hong Kong), Hong Kong Chinese Medicine Clinical Study Centre, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong
2. Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
3. Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
4. Department of Computer Science, HKBU Faculty of Science, Hong Kong Baptist University, Hong Kong
5. Chinese Cochrane Centre, West China Hospital, Sichuan University, China Trial Registration Center, Chengdu, Sichuan 610041, China