1. Department of Cardiothoracic Surgery, Shanghai Sixth People's Hospital; Shanghai Jiao Tong University; Shanghai 200233 China
2. Department of Cardiothoracic Surgery; The First Affiliated Hospital of Chongqing Medical University; Chongqing 400016 China
3. Department of Oncological Surgery; Anqing Hospital of Anhui Medical University; Anhui 246000 China
4. Department of Cardiovascular Surgery, Ren Ji Hospital, School of Medicine; Shanghai Jiao Tong University; Shanghai 200001 China