title: [Diagnostic significance of extrasystole].
mesh_terms: D000368:Aged; D005117:Cardiac Complexes, Premature / Q000209:etiology*; D003327:Coronary Disease / Q000175:diagnosis*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
vernacular_title: K voprosu o diagnosticheskom znachenii ékstrasistol.