title: Novel approach to ampullary cannulation.
authors.forename: S C
authors.initials: SC
authors.lastname: Batra
authors.forename: E
authors.initials: E
authors.lastname: Trowers
authors.forename: K
authors.initials: K
authors.lastname: Dayemo
authors.forename: H P
authors.initials: HP
authors.lastname: Singh
mesh_terms: D000368:Aged; D014670:Ampulla of Vater; D002404:Catheterization / Q000379:methods*; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000379:methods*; D006801:Humans; D008297:Male