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The secondary sex ratio, paternal age, maternal age and birth order in Japan

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References

1976The secondary sex ratio in the United States 1969–71: Association with race, parental ages, birth order, paternal education and legitimacy91 cited
1958Birth order, parental ages, and sex of off-spring.80 cited
1977Maternal age, parity* social class and sex ratio76 cited
1971Limited dependence of the human sex ratio on birth order and parental ages.34 cited
1954THE EFFECTS OF THE AGE OF THE MOTHER ON THE SEX RATIO AT BIRTH IN JAPAN24 cited
1976A multivariate analysis of the relationship between parental age and birth order and the human secondary sex ratio24 cited

Cited by

1981The changing sex ratio in Japan19 cited

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