Novel double endoscopic ultrasound-guided hepaticogastrostomy for two-hole benign anastomotic stenosis with difficult gastrointestinal approach - Kitamura, Hidetoshi; Hijioka, Susumu; Maruki, Yuta; Ohba, Akihiro; Nagashio, Yoshikuni; Okusaka, Takuji; Saito, Yutaka (Endoscopy, 2020)