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The male/female ratio of fetal deaths and births in Japan.

R. MIZUNO |

Dans Lancet (The) (vol. 356, n° 9231, 2000)

[BDSP. Notice produite par INIST 7nLisR0x. Diffusion soumise à autorisation]. The decline In the male/female ratio of births has not yet been explained. In Japan, the male/female ratio of fetal deaths has been Increasing since the 1970s, reachin[...]

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