1. Department of Vascular Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
2. Department of Nursing, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
3. Department of Vascular Surgery, Shanghai Pudong Hospital Affiliated to Fudan University, Shanghai 201399, P.R. China