Matsuda T, Fujii T, Sano Y, Kudo S‐E, Oda Y, Hotta K, Shimoda T, Saito Y, Kobayashi N, Sekiguchi M, Konishi K, Ikematsu H, Iishi H, Takeuchi Y, Igarashi M, Kobayashi K, Sada M, Yamaguchi Y, Hasuda K, Shinohara T, Ishikawa H, Murakami Y, Taniguchi H, Fujimori T, Ajioka Y, Yoshida S, Gut 70(8):1-10, DOI:10.1136/gutjnl-2020-321996, November 2020.