**Author details**

Hiroshi Makino1 \*, Hiroshi Yoshida1 and Eiji Uchida2

\*Address all correspondence to: himiyumo@nms.ac.jp

1 Department of Surgery, Nippon Medical School, Tama-Nagayama Hospital, Tama, Japan

2 Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Tama, Japan
