AN EXPERIMENTAL STUDY OF CONCEALED CONDUCTION.
D000818:Animals; D004285:Dogs; D004562:Electrocardiography; D006327:Heart Block; D006329:Heart Conduction System; D006331:Heart Diseases; D006801:Humans; D012106:Research; D013562:Sympathectomy; D014628:Vagotomy
DOGS; ELECTROCARDIOGRAPHY; EXPERIMENTAL LAB STUDY; HEART BLOCK; HEART CONDUCTION SYSTEM; HEART DISEASES; SYMPATHECTOMY; VAGOTOMY