1. Department of Fundamental Nursing, School of Nursing, Fudan University , Shanghai , China
2. Department of Social Medicine and Health Management, School of Public Health, Shanghai Jiao Tong University School of Medicine , Shanghai , China
3. Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University , Shanghai , China
4. Department of Community Health, Xidu Community Health Service Center of Fengxian District , Shanghai , China
5. Department of General Practition, Zhongshan Hospital Fudan University , Shanghai , China
6. Department of General Practition, Zhongshan Hospital International Medical Center , Shanghai , China