1. Department of General Surgery, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China
2. The Second Clinical Medical College, Affiliated Fifth People’s Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
3. Chengdu Fifth People’s Hospital, Cancer Prevention and Treatment Institute of Chengdu, Chengdu, Sichuan, China
4. Department of Medical Oncology, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China