1. Center for Clinical Epidemiology and Methodology (CCEM) Guangdong Second Provincial General Hospital Guangzhou China
2. Department of Health Research Methods, Evidence, and Impact (HEI) McMaster University Hamilton Ontario Canada
3. Department of Endocrinology Guangdong Second Provincial General Hospital Guangzhou China
4. Faculty of Health Sciences University of Johannesburg Johannesburg South Africa
5. Chinese Evidence‐based Medicine Center and Cochrane China Center West China Hospital Sichuan University Chengdu China