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. 1955 Mar 5;268(6862):499-503.
doi: 10.1016/s0140-6736(55)90284-1.

Social and biological factors in infant mortality. IV. The independent effects of social class, region, the mother's age and her parity

J A HEADY, C F STEVENS, C DALY, J N MORRIS

Social and biological factors in infant mortality. IV. The independent effects of social class, region, the mother's age and her parity

J A HEADY et al. Lancet. .
No abstract available

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