1. Department of Abdominal Oncology, West China Hospital of Sichuan University, Chengdu, Sichuan, P.R. China
2. Department of Thoracic Oncology, West China Hospital of Sichuan University, Chengdu, Sichuan P.R. China
3. Department of Radiation Oncology, The First Affiliated Hospital, College of Medical, Xi’an Jiaotong University, Xi’an, Shaanxi, P.R. China