1. Department of Evidence-Based Medicine and Clinical Epidemiology, West China Hospital; Sichuan University; Chengdu China
2. Department of Developmental Studies; Indiana University of Pennsylvania; Indiana United States
3. Department of Occupational Disease Department; Nuclear Industry 416 Hospital; Chengdu China
4. Department of Nutrition; Second Affiliated Hospital of Chongqing Medical University; Chongqing China
5. Department of West China School of Medicine; Sichuan University; Chengdu China