Hygienic assessment of day sleep of 6-year-old children under school conditions

Usanova, E.P.; Leonov, A.V.; Beliaeva, A.V.; Baliasnikova, T.V.

Gigiena i Sanitariia 9: 53-54

1991


ISSN/ISBN: 0016-9900
PMID: 1838730
Document Number: 386378

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