title: Graphical representation of circadian patterns of heart rate variability components.
mesh_terms: D000328:Adult; D000465:Algorithms; D005117:Cardiac Complexes, Premature / Q000503:physiopathology; D002940:Circadian Rhythm; D003196:Computer Graphics; D015716:Electrocardiography, Ambulatory; D005583:Fourier Analysis; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D012815:Signal Processing, Computer-Assisted; D018754:Ventricular Dysfunction / Q000503:physiopathology