title: [A study on ventricular premature contraction (VPC) by Holter ECG recordings. Regarding diurnal and day-to-day variations].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005117:Cardiac Complexes, Premature / Q000503:physiopathology*; D002940:Circadian Rhythm; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic