Kawakami Hiroshi, Kuwatani Masaki, Sakamoto Naoya
Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo, Japan.
Division of Endoscopy, Hokkaido University Hospital, Sapporo, Japan.
Gut Liver. 2016 Mar;10(2):318-9. doi: 10.5009/gnl15238.