Secular trends in sex ratios at birth in North America and Europe over the second half of the 20th century | Journal of Epidemiology & Community Health

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Secular trends in sex ratios at birth in North America and Europe over the second half of the 20th century

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Cite this article as:: Grech V, Vassallo-Agius P, Savona-Ventura C

Secular trends in sex ratios at birth in North America and Europe over the second half of the 20th century

Journal of Epidemiology & Community Health 2003;57:612-615.