1. School of Nursing, University of California, San Francisco, CA 94143, USA
2. School of Nursing, Central South University, Changsha 410017, China
3. Manchester Centre for Health Psychology, University of Manchester, Manchester M13 9PL, UK
4. Hunan Provincial People’s Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410081, China
5. Nursing Department, The Third Xiangya Hospital, Central South University, Changsha 410013, China
6. Department of Biostatistics and Epidemiology, University of California, San Francisco, CA 94143, USA