[Effect of study load on the bodies of first-grade students at various levels of development].
D000365:Age Determination by Skeleton; D000366:Age Determination by Teeth; D001827:Body Height; D002648:Child; D002657:Child Development; D005260:Female; D006801:Humans; D008297:Male; D012574:Schools; D013663:Teaching; D014938:Work Capacity Evaluation
Vliianie uchebnoĭ nagruzki na organizm pervoklassikov s raznym urovnem razvitiia