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Temporal Variation in Rates of Multiple Maternities in Denmark, 1850-2012

Johan Fellman1

  • 1Hanken School of Economics,Helsinki,Finland.

Twin Research and Human Genetics : the Official Journal of the International Society for Twin Studies
|May 28, 2015
PubMed

Keywords:
Hellin’s lawartificial reproduction techniques (ART)maternal ageparitystandardizationtriplet ratetwinning rate

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