title: [ON THE ETIOLOGY OF SEVERE ATRIOVENTRICULAR BLOCK IN CHILDHOOD].
mesh_terms: D001145:Arrhythmias, Cardiac; D054537:Atrioventricular Block; D002648:Child; D004562:Electrocardiography; D004696:Endocarditis; D004698:Endocarditis, Subacute Bacterial; D006327:Heart Block; D006330:Heart Defects, Congenital; D006801:Humans; D009205:Myocarditis; D010701:Phonocardiography; D013902:Radiography, Thoracic; D012214:Rheumatic Heart Disease
keywords: ARRHYTHMIA; CHILD; ELECTROCARDIOGRAPHY; ENDOCARDITIS, SUBACUTE BACTERIAL; HEART BLOCK; HEART DEFECTS, CONGENITAL; MYOCARDITIS; PHONOCARDIOGRAPHY; RHEUMATIC HEART DISEASE; THORACIC RADIOGRAPHY
vernacular_title: OB 'ETIOLOGII ATRIOVENTRIKULIARNO I BLOKADY VYSOKIKH STEPENE I V DETSKOM VOZRASTE.