title: Letter: Sinoventricular conduction with absent P waves.
mesh_terms: D000368:Aged; D001146:Arrhythmia, Sinus / Q000503:physiopathology; D006328:Cardiac Catheterization; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans