Affiliation: | 1.Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan ;2.Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Maebashi, Japan ;3.Division of Gastroenterological Surgery, Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Japan ;4.Department of Surgery and Laparoscopic Surgery, Gunma Prefecture Saiseikai Maebashi Hospital, Maebashi, Japan ; |