title: Rhythmometry reveals heritability of circadian characteristics of heart rate of human twins reared apart.
mesh_terms: D000328:Adult; D002648:Child; D002668:Child Rearing; D002940:Circadian Rhythm; D004562:Electrocardiography / Q000379:methods; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D014427:Twins; D014430:Twins, Monozygotic