title: Atypical duodenal ulcer associated with the antiphospholipid antibody syndrome.
authors.forename: M S
authors.initials: MS
authors.lastname: Cappell
mesh_terms: D016736:Antiphospholipid Syndrome / Q000150:complications*; D004381:Duodenal Ulcer / Q000209:etiology*; D006801:Humans