Development of an in vivo swine model of biliary dilatation-based direct peroral cholangioscopy. - Park, Jin‐Seok; Jeong, Seok; Kwon, Chang‐Il; Choi, Hyun Jong; Koh, Dong Hee; Cho, Jae Hee; Hyun, Jong Jin; Moon, Jong‐Ho; Lee, Don Haeng (Digestive Endoscopy, 2016)