Hilar Malignancy: A New Approach For Double MetallicWallstent Placement by Using Combined Percutaneous & Endoscopic Techniques - CUMHUR, T.; ŞAHİN, B. and ÖLÇER, T. and ÖZDEMİR, E. and ARDA, K. and BOYACIOĞLU, S. and ÇEKEN, C. (Turkish Journal of Gastroenterology, 1992)