Endoscopic ultrasound-guided antegrade papillary balloon dilation for treating a common bile duct stone. - Iwashita, Takuji; Yasuda, Ichiro; Doi, Shinpei; Yamauchi, Takahiro; Uemura, Shinya; Okuno, Mitsuru; Moriwaki, Hisataka (Digestive Endoscopy, 2013)