1Department of Obstetrics, Gynecology and Reproductive Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX. Electronic address: Irene.Stafford@uth.tmc.edu.
2Department of Medical Laboratory Science, Marquette University, Milwaukee, WI.
3McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX.
4Department of Obstetrics, Gynecology and Reproductive Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX.
5Scientific Affairs for Women's Health Diagnostics, Hologic Inc. San Diego, CA.