title: [Difficulties in differential diagnosis of peptic ulcer and ischemic heart disease].
authors.forename: O V
authors.initials: OV
authors.lastname: Reshetnikov
authors.forename: S A
authors.initials: SA
authors.lastname: Kurilovich
authors.forename: E A
authors.initials: EA
authors.lastname: Viazigin
authors.forename: T A
authors.initials: TA
authors.lastname: Kopychko
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D004381:Duodenal Ulcer / Q000175:diagnosis*; D004562:Electrocardiography; D016145:Endoscopy, Digestive System; D005500:Follow-Up Studies; D006801:Humans; D017202:Myocardial Ischemia / Q000175:diagnosis*; D013276:Stomach Ulcer / Q000175:diagnosis*