title: Variability of repetitive arrhythmia formation in patients with chronic ventricular arrhythmia.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D005117:Cardiac Complexes, Premature / Q000503:physiopathology; D002908:Chronic Disease; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D013610:Tachycardia / Q000503:physiopathology