title: The Frank scalar atrial vectorcardiogram in normal children.
mesh_terms: D000293:Adolescent; D000328:Adult; D016275:Atrial Function; D002648:Child; D002675:Child, Preschool; D004566:Electrodes; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D014672:Vectorcardiography / Q000379:methods*