title: Cannulation techniques for ERCP: one size does not fit all.
authors.forename: Martin L
authors.initials: ML
authors.lastname: Freeman
mesh_terms: D001660:Biliary Tract Diseases / Q000175:diagnosis*; D002404:Catheterization / Q000379:methods*; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000379:methods*; D003135:Common Bile Duct / Q000601:surgery*; D006801:Humans; D011677:Punctures / Q000379:methods