Martinez-Lopez, J I ECG of the month. Atrial fibrillation with advanced AV block. [electronic resource] - The Journal of the Louisiana State Medical Society : official organ of the Louisiana State Medical Society Feb 1988 - 11, 13-4 p. digital Publication Type: Journal Article ISSN: 0024-6921 Subjects--Topical Terms: Atrial Fibrillation--complicationsElectrocardiographyHeart Block--complicationsHumans