Okagawa Yutaka, Yoshinaga Shigetaka, Noguchi Emi, Sekine Shigeki
Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.
Department of Gastroenterology, Tonan Hospital, Sapporo, Japan.
Jpn J Clin Oncol. 2021 Apr 30;51(5):846-847. doi: 10.1093/jjco/hyab009.