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