1. School of Medicine and Health Management, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
2. Department of Epidemiology and Biostatistics, College for Public Health and Social Justice, Saint Louis University, MO, USA
3. School of Social Work, College for Public Health and Social Justice, Saint Louis University, MO, USA
4. Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China