Affiliations

• ¹ Department of Obstetrics and Gynecology, The Ohio State University, 395 W. 12 Ave., Floor 5, Columbus, OH 43210. Electronic address: tracycaroline46@gmail.com.
• ² Department of Obstetrics and Gynecology, Northwestern University, Chicago, IL.
• ³ Department of Obstetrics and Gynecology, The Ohio State University, Columbus, OH.
• ⁴ Department of Obstetrics and Gynecology, Indiana University, Indianapolis, IN.
• ⁵ RTI International, Durham, NC.
• ⁶ Department of Obstetrics and Gynecology, Case Western Reserve University, Cleveland, OH.
• ⁷ Department of Obstetrics and Gynecology, University of Pittsburgh, Pittsburgh, PA.
• ⁸ Department of Obstetrics and Gynecology, Columbia University, New York, NY.
• ⁹ Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT.
• ¹⁰ Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, PA.
• ¹¹ Department of Obstetrics and Gynecology, Eastern Virginia Medical Center, Norfolk, VA.
• ¹² Department of Obstetrics and Gynecology, School of Medicine, University of California, Irvine, Orange, CA.