[Changes in the functional status of the organism of schoolchildren during the school day].
D000293:Adolescent; D002648:Child; D002940:Circadian Rhythm; D005221:Fatigue; D006801:Humans; D012572:School Health Services; D012621:Seasons; D013997:Time Factors; D014586:USSR
Ob izmeneniiakh funktsional'nogo sostoianiia organizma shkol'nikov v techenie uchebnogo dnia.