title: Duration of cardiac systole in children with femoral arteriovenous fistulas.
mesh_terms: D000293:Adolescent; D001164:Arteriovenous Fistula / Q000503:physiopathology; D002648:Child; D004562:Electrocardiography; D005260:Female; D005263:Femoral Artery / Q000601:surgery*; D005268:Femoral Vein / Q000601:surgery*; D006321:Heart / Q000503:physiopathology*; D006326:Heart Auscultation; D006339:Heart Rate; D006801:Humans; D008297:Male; D010701:Phonocardiography; D011187:Posture; D012119:Respiration; D013997:Time Factors