1. School of Management, Fudan University, Shanghai 200433, China
2. Department of Vascular Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
3. Department of Information, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
4. Department of Respiratory Medicine, Shanghai Tongren Hospital, Shanghai Jiao Tong University, Shanghai 200336, China
5. Department of General Surgery, Tongji Hospital Affiliated to Tongji University, Shanghai 200065, China
6. Psychiatry Department, Columbia University/New York State Psychiatric Institute, New York City, NY 10032, USA