Change in male proportion among newborn infants

Change in male proportion among newborn infants

Fabio Parazzini, Carlo La Vecchia, Liliane Chatenoud, Francesça Chiaffarino, Guido Benzi
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Volume:
349
Year:
1997
Language:
english
DOI:
10.1016/s0140-6736(05)60235-8
File:
PDF, 53 KB
english, 1997
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