title: [Circadian rhythm of ventricular premature beat and urinary catecholamines--evaluation with Holtor ECG].
mesh_terms: D000293:Adolescent; D000328:Adult; D005117:Cardiac Complexes, Premature / Q000503:physiopathology* / Q000652:urine; D002395:Catecholamines / Q000652:urine*; D002940:Circadian Rhythm; D004562:Electrocardiography / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic; D013564:Sympathetic Nervous System / Q000503:physiopathology
chemical_list: D002395:Catecholamines