Source:http://linkedlifedata.com/resource/umls/id/C0264906
NCI: A cardiac rhythm characterized by intermittent failure of atrial electrical impulse conduction through the atrioventricular (AV) node to the ventricles. This includes Mobitz I and Mobitz II.,NCI: Intermittent failure of atrial electrical impulse conduction through the atrioventricular (AV) node to the ventricles. (NCI)