title: Biopsies of the ampullary region in sphincter of Oddi dysfunction.
authors.forename: D F
authors.initials: DF
authors.lastname: Martin
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology* / Q000601:surgery; D014670:Ampulla of Vater / Q000473:pathology*; D001706:Biopsy; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000379:methods*; D003138:Common Bile Duct Neoplasms / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008365:Manometry; D008875:Middle Aged; D009803:Sphincter of Oddi / Q000473:pathology* / Q000601:surgery