Effect of various biological and social factors on morbidity among preschool children

Berezhkov, L.F.; Zutler, A.S.; Usol'tsev, A.N.; Riazanova, L.L.; Omel'chenko, N.F.

Gigiena i Sanitariia 3: 35-37

1986


ISSN/ISBN: 0016-9900
PMID: 3699461
Document Number: 281180

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