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Studies in Fetal and Infant Mortality. II. Differentials in Mortality by Sex and Race Esmat I. HammoudD.M.Dr.P.H.F.A.P.H.A. CopyRight https://doi.org/10.2105/AJPH.55.8.1152 Published Online: August 29, 2011
Esmat I. Hammoud (1965) studied this question.