title: The wide electrophysiologic spectrum of tachycardias having R-P intervals longer than the P-R intervals.
mesh_terms: D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D006325:Heart Atria / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D013617:Tachycardia, Supraventricular / Q000503:physiopathology*