Impact of Periampullary Duodenal Diverticula at Endoscopic Retrograde Cholangiopancreatography: A Proposed Classification of Periampullary Duodenal DiverticulaJaume Boix, M A Gassull, Rosa M. Morillas et al.|Surgical Laparoscopy Endoscopy & Percutaneous Techniques|2006Cited by 131