シンポジウム4 Current status and future perspective of biliary drainage

[S4-7] Inside placement of plastic versus metal stents for unresectable malignant biliary hilar obstructions：A multicenter randomized control trial

Yoshihide Kanno^1,2, Kei Ito^1,2, Yujiro Kawakami^1,3 (1.MiPS Study Group, Japan, 2.Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan, 3.Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine)