1. Chinese Cochrane Centre, Chinese Evidence-Based Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuang, China
2. Evidence-Based Medicine Research Centre, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
3. State Key Laboratory of Trauma, Burns and Combined Injury, Second Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China