title: [Significance of the clinico-instrumental study in myocardial infarct in middle-aged and elderly patients].
mesh_terms: D000367:Age Factors; D000368:Aged; D000375:Aging; D001450:Ballistocardiography; D004562:Electrocardiography; D006321:Heart / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology*; D010701:Phonocardiography
vernacular_title: Znachenie kliniko-instrumentla'nykh issledovanii pri infarkte miokarda u bol'nykh pozhilogo i starcheskogo vozrasta.