title: An arrhythmia clarified by polarcardiography.
mesh_terms: D000328:Adult; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D013610:Tachycardia / Q000175:diagnosis; D013614:Tachycardia, Paroxysmal / Q000175:diagnosis; D014672:Vectorcardiography; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis