1. College of Medicine, Northwest Minzu University, Lanzhou, China
2. School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR of China
3. Department of Rehabilitation Medicine, Shanghai Xuhui Central Hospital, Shanghai, China
4. School of Economics and Management, Henan Polytechnic University, Jiaozuo, China
5. School of Economic Crime Investigation, Jiangxi Police Academy, Nanchang, China.