Kazumichi Kawakubo, MD, PhD
Department of Gastroenterology and Hepatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
Masaki Kuwatani, MD, PhD
Department of Gastroenterology and Hepatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
Division of Endoscopy, Hokkaido University Hospital, Sapporo, Japan
Shin Kato, MD
Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
Naoya Sakamoto, MD, PhD
Department of Gastroenterology and Hepatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
Division of Endoscopy, Hokkaido University Hospital, Sapporo, Japan