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Wang JG, Douglas NC, Dicken C, Nakhuda GS, Guarnaccia MM, Sauer MV.Wang JG, et al. Among authors: douglas nc.Fertil Steril. 2008 Feb;89(2):368-74. doi: 10.1016/j.fertnstert.2007.03.031. Epub 2007 May 16.Fertil Steril. 2008.PMID: 17509594Free article.
Douglas NC, Shah M, Sauer MV.Douglas NC, et al.Semin Perinatol. 2007 Dec;31(6):332-8. doi: 10.1053/j.semperi.2007.09.002.Semin Perinatol. 2007.PMID: 18063116Review.