[Hygienic basis of the viewing angle for younger and preschool children].
D002648:Child; D002675:Child, Preschool; D006801:Humans; D007374:Interior Design and Furnishings / Q000592:standards; D008029:Lighting / Q000592:standards; D012574:Schools / Q000592:standards*; D014785:Vision, Ocular / Q000502:physiology*
Gigienicheskoe obosnovanie ugla rassmatrivaniia dlia detei mladshego i doshkol'nogo vozrasta.