Authors’ contributions
Hiroyuki Kuamata, Keisuke Onishi, and Tetsuro Takayama performed the
surgery. Hiroyuki Kumata, Tetsuro Takayama, Kengo Asami, and Izumi Haga
managed the perioperative course. Noriyuki Obara was the
gastroenterologist who examined and diagnosed the cancer. Hiroyuki
Kumata, Keisuke Onishi, Tetsuro Takayama, Kengo Asami, Hirofumi
Sugawara, and Izumi Haga participated in discussions. Keisuke Onishi
supervised the patient treatment. Keisuke Onishi and Tetsuro Takayama
prepared the manuscript. Kengo Asami supervised the writing of the
manuscript. All authors have read and approved the final manuscript.