From the Departments of Obstetrics and Gynecology at the University of Texas Southwestern Medical Center, Dallas, Texas; the University of Alabama at Birmingham, Birmingham, Alabama; the Ohio State University, Columbus, Ohio; the University of Utah, Salt Lake City, Utah; the University of Pittsburgh, Pittsburgh, Pennsylvania; Wake Forest University Health Sciences, Winston-Salem, North Carolina; Thomas Jefferson University, Philadelphia, Pennsylvania; Wayne State University, Detroit, Michigan; the University of Cincinnati, Cincinnati, Ohio; the University of Miami, Miami, Florida; the University of Tennessee, Memphis, Tennessee; the University of Texas Health Science Center at San Antonio, San Antonio, Texas; Vanderbilt University, Nashville, Tennessee; the George Washington University Biostatistics Center, Washington, DC, and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland.
*For a list of other members of the NICHD MFMU, see the Appendix online at https://links.lww.com/AOG/A125.
Supported by grants from the Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD21410, HD21414, HD27860, HD27861, HD27869, HD27905, HD27915, HD27917, HD34116, HD34122, HD34136, HD34208, HD34210, and HD36801).
The authors thank Elizabeth Thom, PhD, for protocol and data management and statistical analysis, and Francee Johnson, BSN, and Julia Gold, BSN/APN, for protocol development and coordination between clinical research centers.
Corresponding author: James M. Alexander, MD, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas, TX 75235-9032; e-mail: [email protected].
Financial Disclosure The authors did not report any potential conflicts of interest.
