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McCoy MJ, Diamond AM, Strunk AL; American Congress of Obstetricians and Gynecologists' Committee on Ambulatory Practice Operations.McCoy MJ, et al. Among authors: strunk al.Obstet Gynecol. 2010 Jul;116(1):140-143. doi: 10.1097/AOG.0b013e3181e1328c.Obstet Gynecol. 2010.PMID: 20567180