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Help about newborns
Szostek Krzysztof (SZOS@ZUK.IZ.UJ.EDU.PL)
Wed, 6 Mar 1996 10:37:33 MET+2
Dear Colleagues,
If somebody know about a literature deal seasonality of births and
data about the newborns from this point of view (proportion of
sex, metrical traits, duration of pregnancy, age of mothers) in last
4-5 years, please send the information.
Please write
Krzysztof Szostek
szos@zuk.iz.uj.edu.pl
Newborns
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