Double-balloon enteroscopy-assisted ERCP in situs inversus with Roux-en-Y hepaticojejunostomy for complex anastomotic stricture dilated with Soehendra stent retriever - Inoue, Tadahisa; Yamamoto, Takaya; Ishii, Norimitsu; Kobayashi, Yuji; Ito, Kiyoaki; Yoneda, Masashi (Endoscopy, 2017)