Affiliation: | (1) Department of Surgery, Tone Chuo Hospital, 1855-1 Higashiharashin-machi, Numata, Gunma, 378-0053, Japan;(2) Department of Internal Medicine, Tone Chuo Hospital, 1855-1 Higashiharashin-machi, Numata, Gunma, 378-0053, Japan;(3) Department of Pathology, Tone Chuo Hospital, 1855-1 Higashiharashin-machi, Numata, Gunma, 378-0053, Japan;(4) First Department of Surgery, Gunma University School of Medicine, Gunma, Japan |