title: [Effect of body position on grade I atrioventricular block].
mesh_terms: D000293:Adolescent; D002648:Child; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006327:Heart Block; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D011187:Posture
vernacular_title: Wpływ pozycji ciała na blok przedsionkowo-komorowy.