[Role of the supernormal phase in the origin of extrasystole with fixed coupling].
D000368:Aged; D005117:Cardiac Complexes, Premature / Q000209:etiology*; D006327:Heart Block / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D011183:Postoperative Complications
Ruolo della fase supernormale nella genesi delle extrasistolie ad accoppiamento fisso.