title: COMPETITIVE IDIOCARDIAC AND EXTRINSIC PACEMAKER STIMULI IN HEART BLOCK.
mesh_terms: D000818:Animals; D004285:Dogs; D004562:Electrocardiography; D006327:Heart Block; D006329:Heart Conduction System; D006801:Humans; D010138:Pacemaker, Artificial
keywords: DOGS; ELECTROCARDIOGRAPHY; HEART BLOCK; HEART CONDUCTION SYSTEM; PACEMAKER, ARTIFICIAL