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Smith PP, Middleton LJ, Connor M, Clark TJ.Smith PP, et al. Among authors: clark tj.Obstet Gynecol. 2014 Apr;123(4):745-51. doi: 10.1097/AOG.0000000000000187.Obstet Gynecol. 2014.PMID: 24785600Clinical Trial.
Smith PP, Malick S, Clark TJ.Smith PP, et al. Among authors: clark tj.Obstet Gynecol. 2014 Aug;124(2 Pt 1):219-225. doi: 10.1097/AOG.0000000000000395.Obstet Gynecol. 2014.PMID: 25004347Clinical Trial.