Novel biliary stenting with an antireflux system for distal biliary obstruction in a patient with a surgically altered anatomy - Iwaya, Hiromichi; Kojima, Issei; Hinokuchi, Makoto; Hashimoto, Shinichi; Tanoue, Shiroh; Kanmura, Shuji; Ido, Akio (Endoscopy International Open, 2021)