. Author manuscript; available in PMC: 2023 Jul 20.
Published in final edited form as: Am J Obstet Gynecol. 2018 Jun 11;219(4):403.e1–403.e9. doi: 10.1016/j.ajog.2018.06.005
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).