Metallic Biliary Drain age;Endoscopic ultrasound versus percutaneous approach after failed endoscopic retrograde cholangiopancreatography for distal biliary stricture Research Authors AMA WAA , Khaled M. Ragab, Mohammad A. Kobeisy ,Mohamed Guda Research Date Fri, 1 Jan 2021 - 12:00 Research Department Internal Medicine Research Journal Egyptian journal of surgery 2021 Research Member AbdelHamid Mohamed AbdelHamid Aly