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Amer SA, Li TC, Ledger WL.Amer SA, et al. Among authors: ledger wl.Hum Reprod. 2009 Nov;24(11):2760-6. doi: 10.1093/humrep/dep271. Epub 2009 Jul 29.Hum Reprod. 2009.PMID: 19640893
Metwally M, Saravelos SH, Ledger WL, Li TC.Metwally M, et al.Fertil Steril. 2010 Jun;94(1):290-5. doi: 10.1016/j.fertnstert.2009.03.021. Epub 2009 May 12.Fertil Steril. 2010.PMID: 19439294Free article.
Amer SA, Laird S, Ledger WL, Li TC.Amer SA, et al. Among authors: ledger wl.Hum Reprod. 2007 Feb;22(2):389-94. doi: 10.1093/humrep/del373. Epub 2006 Oct 5.Hum Reprod. 2007.PMID: 17023489