title: [Supplementary electrocardiographic indices characterizing the functional state of the myocardium].
mesh_terms: D000293:Adolescent; D001145:Arrhythmias, Cardiac / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D006439:Hemodynamics; D006801:Humans; D007223:Infant; D012016:Reference Values
vernacular_title: Dodatkovi elektrokardiohrafichni pokaznyki, shcho kharakteryzuiut' funktsional'nyĭ stan sertsevoho m'iaza.