1. Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
2. Department of Oncology Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
3. Department of Neurosurgery, The First affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China