Maternal serum -hCG levels in screening for Down syndrome are higher in singleton pregnancies achieved with ovulation induction and intrauterine insemination than in spontaneous singleton pregnancies

Author: Raty R.   Ekblad U.   Anttila L.   Virtanen A.   Koskinen P.   Laitinen P.   Tiitinen A.  

Publisher: Elsevier

ISSN: 0015-0282

Source: Fertility and Sterility, Vol.76, Iss.5, 2001-11, pp. : 1075-1077

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