Does a diagnosis of sinoatrial block imply atrioventricular nodal disease?
D001283:Atrioventricular Node / Q000503:physiopathology*; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D012848:Sinoatrial Block / Q000175:diagnosis*