Elsevier, American Journal of Obstetrics & Gynecology, 4(216), p. 382.e1-382.e5, 2017
DOI: 10.1016/j.ajog.2016.12.015
Lippincott, Williams & Wilkins, Obstetrical & Gynecological Survey, 6(72), p. 342-343, 2017
DOI: 10.1097/ogx.0000000000000445
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