1 | Department of Gastric Surgery, Fudan University Shanghai Cancer Center, Shanghai, China 200032 |
2 | Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, China 200040 |
3 | Department of Nursing, Huashan Hospital, Fudan University, Shanghai, China 200040 |
4 | Department of General Surgery, Shanghai Songjiang District Central Hospital, Shanghai, China 201600 |