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Hedderson MM, Ferrara A, Sacks DA.Hedderson MM, et al. Among authors: sacks da.Obstet Gynecol. 2003 Oct;102(4):850-6. doi: 10.1016/s0029-7844(03)00661-6.Obstet Gynecol. 2003.PMID: 14551018
Sacks DA, Feig DS, Liu IL, Wolde-Tsadik G.Sacks DA, et al.J Perinatol. 2006 Aug;26(8):458-62. doi: 10.1038/sj.jp.7211546. Epub 2006 Jun 8.J Perinatol. 2006.PMID: 16761010Clinical Trial.