[The gap phenomenon of A-V conduction: electrophysiological study and report of 7 cases].
D000328:Adult; D001145:Arrhythmias, Cardiac / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged