Ono Shoko, Abiko Satoshi, Kato Mototsugu
Division of Endoscopy, Hokkaido University Hospital, Sapporo, Japan.
Department of Gastroenterology, Hokkaido University Graduate School of Medicine, Japan.
Dig Endosc. 2017 Mar;29(2):230-231. doi: 10.1111/den.12757. Epub 2016 Nov 21.