title: [Frank's vectorcardiogram in pre-excitation syndrome: with special reference to patients without cardiovascular complications].
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D014672:Vectorcardiography; D014927:Wolff-Parkinson-White Syndrome / Q000503:physiopathology*