title: Electrophysiologic mechanisms in postural supraventricular tachycardia.
mesh_terms: D000328:Adult; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D011187:Posture; D013610:Tachycardia / Q000503:physiopathology*