Nagai Kazumasa, Yane Kei, Katanuma Akio, Takahashi Kuniyuki, Kin Toshifumi, Yamazaki Hajime, Maguchi Hiroyuki
Center for Gastroenterology, Teine-Keijinkai Hospital, Sapporo, Japan.
Endoscopy. 2016;48 Suppl 1:E140-1. doi: 10.1055/s-0042-105208. Epub 2016 Apr 14.