AUTOMATIC RHYTHMS PRODUCED BY ECTOPIC VENTRICULAR CONTRACTIONS.
D001145:Arrhythmias, Cardiac; D001161:Arteriosclerosis; D001281:Atrial Fibrillation; D005117:Cardiac Complexes, Premature; D004562:Electrocardiography; D005853:Geriatrics; D006801:Humans; D013610:Tachycardia
ARRHYTHMIA; ARTERIOSCLEROSIS; AURICULAR FIBRILLATION; ELECTROCARDIOGRAPHY; EXTRASYSTOLE; GERIATRICS; TACHYCARDIA