Endoscopic ultrasound‐guided antegrade papillary balloon dilation for treating a common bile duct stone. Issue 1 (3rd January 2013) - Iwashita, Takuji; Yasuda, Ichiro; Doi, Shinpei; Yamauchi, Takahiro; Uemura, Shinya; Okuno, Mitsuru; Moriwaki, Hisataka