[Circadian variation of heart rate and heart rhythmicity].
Otsuka
K
K
Department of Medicine, Tokyo Women's Medical College, Daini Hospital.
Watanabe
H
H
Ogura
H
H
D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002940:Circadian Rhythm; D015716:Electrocardiography, Ambulatory; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D012890:Sleep / Q000502:physiology