title: Gap in A-V conduction in man; types I and II.
mesh_terms: D001161:Arteriosclerosis / Q000473:pathology; D006328:Cardiac Catheterization; D003327:Coronary Disease / Q000503:physiopathology*; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged