1. Department of Osteology, The First Peoples Hospital of Neijiang, Neijiang, Sichuan, China
2. Department of Hepatic-Biliary-Pancreatic Surgery, The First Peoples Hospital of Neijiang, Neijiang, Sichuan, China
3. Department of Gastroenterology, The First Peoples Hospital of Neijiang, Neijiang, Sichuan, China