A novel long-balloon dilator for endoscopic ultrasound-guided hepaticogastrostomy and bridging stenting with partial stent-in-stent method - Niiya, Fumitaka; Tamai, Naoki; Noda, Jun; Azami, Tetsushi; Takano, Yuichi; Nishimoto, Fumiya; Nagahama, Masatsugu (Endoscopy, 2024)