title: [The penetrated parapapillary duodenal ulcer].
authors.forename: N A
authors.initials: NA
authors.lastname: postrelov
authors.forename: Iu V
authors.initials: IuV
authors.lastname: Plotnikov
authors.forename: E B
authors.initials: EB
authors.lastname: Avalueva
mesh_terms: D014670:Ampulla of Vater; D013505:Digestive System Surgical Procedures / Q000379:methods*; D004381:Duodenal Ulcer / Q000175:diagnosis* / Q000601:surgery; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000175:diagnosis* / Q000601:surgery