School maturity as a medical problem

Grombakh, S.M.; Dubinsakia, I.D.; Kuindzhi, N.N.; Sorokina, T.N.

Voprosy Okhrany Materinstva i Detstva 21(9): 16-18

1976


ISSN/ISBN: 0042-8825
PMID: 997384
Document Number: 99556

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