[Effect of the natural light regimen on human circadian rhythms].
D002940:Circadian Rhythm / Q000528:radiation effects*; D005843:Geography; D006339:Heart Rate; D006801:Humans; D012621:Seasons; D013472:Sunlight; D014586:USSR
Vliianie estestvennogo svetovogo rezhima na sutochnye ritmy cheloveka.