Effect of study load on the bodies of first-grade students at various levels of development

Shulydina, L.V.; Matveeva, N.A.; Zhukova, N.P.; Usanova, E.P.; Kornilova, P.M.

Gigiena i Sanitariia 5: 42-45

1976


ISSN/ISBN: 0016-9900
PMID: 181289
Document Number: 104799

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