[Vectocardiography in 20 cases of patients with pacemakers].
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D014672:Vectorcardiography
Estudio vectocardiográfico en 20 casos de enfermos con marcapaso.