TY - JOUR AN - 32 AU - Knyrim,K. AU - Wagner,H.J. AU - Pausch,J. AU - Vakil,N. TI - A prospective, randomized, controlled trial of metal stents for malignant obstruction of the common bile duct. JO - Endoscopy PY - 1993 VL - 25 SP - 207-212 M2 - 207 DO - 10.1055/s-2007-1010294 ER -