[Auricular extrasystole with QRS complex of normal duration in branch block cases].
D005117:Cardiac Complexes, Premature; D004562:Electrocardiography; D006327:Heart Block; D006801:Humans
ELECTROCARDIOGRAPHY; HEART BLOCK/manifestations
Extrassístoles auriculares com complexo QRS de duraçāo normal em casos de bloqueio de ramo.