A case of massive bleeding after endoscopic sphincterotomy in a patient with a history of large walled-off pancreatic necrosis in the area of the pancreatic groove - Shintani, Shuhei; Inatomi, Osamu; Takeda, Yoshiya; Fujimoto, Takehide; Bamba, Shigeki; Kutsumi, Hiromu; Andoh, Akira (Endoscopy, 2022)