title: Two non-overlapping PR intervals in a patient with dual pathways atrioventricular nodal reentrant tachycardia.
mesh_terms: D000328:Adult; D001283:Atrioventricular Node / Q000503:physiopathology*; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D013614:Tachycardia, Paroxysmal / Q000503:physiopathology*