Lorie M. Harper 1, Yumo Xue 2, Jeff M. Szychowski 3, Methodius G. Tuuli 4, Erika F. Werner 5, Jerrie Refuerzo 6, Miriam Kuppermann 7, Alan T. Tita 3
1 Center for Women's Reproductive Health, University of Alabama at Birmingham, Birmingham, AL
2 Department of Biostatistics in Public Health, University of Alabama Birmingham, Birmingham, AL
3 Center for Women’s Reproductive Health, University of Alabama at Birmingham, Birmingham, AL
4 Indiana University, Carmel, IN
5 Brown University, Providence, RI
6 McGovern Medical School at the University of Texas Health Science Center at Houston (UT Health), Houston, TX
7 University of California, San Francisco, San Francisco, CA