[Study of the supernormal phase of the cardiac excitability cycle in subjects with intracardiac pacemakers].
D000368:Aged; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial
Studio della fase supernormale del ciclo di eccitailita' cardiaca in soggetti con pacemaker encocardico.