Michael E. Ryan

Complications of Endoscopic Biliary Sphincterotomy

Martin L. Freeman, Douglas B. Nelson, S Sherman et al. · New England Journal of Medicine · 1996 · 2.5K citations · Full text

Medicine, Surgery, Gastroenterology +12

Risk factors for post-ERCP pancreatitis: A prospective, multicenter study

Martin L. Freeman, James A. DiSario, Douglas B. Nelson et al. · Gastrointestinal Endoscopy · 2001 · 1.3K citations

Medicine, Clinical Sciences, Internal Medicine +16

Endoscopic balloon dilation compared with sphincterotomy for extraction of bile duct stones

James A. DiSario, Martin L. Freeman, David J. Bjorkman et al. · Gastroenterology · 2004 · 381 citations · Full text

Medicine, Surgery, Gastroenterology +11

Guidelines for credentialing and granting privileges for endoscopic ultrasound

Glenn M. Eisen, Jason A. Dominitz, Douglas O. Faigel et al. · Gastrointestinal Endoscopy · 2001 · 223 citations

Medicine, Radiology, Ultrasonography +8

Plastic Versus Self-expanding Metallic Stents for Malignant Hilar Biliary Obstruction

David G. Perdue, Martin L. Freeman, James A. DiSario et al. · Journal of Clinical Gastroenterology · 2008 · 179 citations

Medicine, Plastic Surgery, Surgery +17