title: [THE QRS MEAN VECTORS IN THE NORMAL HEART].
mesh_terms: D005822:Genetic Vectors; D005853:Geriatrics; D006321:Heart; D006801:Humans; D014672:Vectorcardiography
keywords: GERIATRICS; VECTORCARDIOGRAPHY
vernacular_title: LES VECTEURS MOYENS DE QRS DANS LE COEUR NORMAL.