title: [Attempt to formulate an updated classification of ulcer disease].
authors.forename: I N
authors.initials: IN
authors.lastname: Stanchev
mesh_terms: D004381:Duodenal Ulcer / Q000145:classification; D006801:Humans; D010437:Peptic Ulcer / Q000145:classification*; D013276:Stomach Ulcer / Q000145:classification