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Borah BJ, Laughlin-Tommaso SK, Myers ER, Yao X, Stewart EA.Borah BJ, et al. Among authors: stewart ea.Obstet Gynecol. 2016 Jan;127(1):67-77. doi: 10.1097/AOG.0000000000001160.Obstet Gynecol. 2016.PMID: 26646122Free PMC article.
Yao X, Stewart EA, Laughlin-Tommaso SK, Heien HC, Borah BJ.Yao X, et al. Among authors: stewart ea.BJOG. 2017 Jan;124(2):322-330. doi: 10.1111/1471-0528.14383. Epub 2016 Oct 21.BJOG. 2017.PMID: 27770484Free PMC article.