title: [THE POSITION OF THE ELECTRIC HEART AXIS RELATIVE TO THE SAGITTAL PLANE IN THE THORAX].
mesh_terms: D004560:Electricity; D004562:Electrocardiography; D006801:Humans; D013909:Thorax; D014636:Valsalva Maneuver; D014672:Vectorcardiography
keywords: ELECTROCARDIOGRAPHY; VALSALVA'S MANEUVER; VECTORCARDIOGRAPHY
vernacular_title: DIE LAGE DER ELEKTRISCHEN HERZACHSE ZUR SAGITTALEN EBENE IM THORAX.