1. Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
2. Department of Urology Surgery, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
3. Department of Hepatobiliary, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
4. Department of Thoracic Surgery, The Shenzhen Bao’an District Songgang People’s Hospital, Shenzhen 518105, China
5. Department of Gastroenterology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin 541002, China