Use of transtelephonic electrocardiography in patients with symptoms suggesting cardiac arrhythmia.
D000293:Adolescent; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography / Q000379:methods*; D006801:Humans; D003629:Modems; D013689:Telephone