1. Department of Biomedical and Health Informatics, University of Missouri-Kansas City School of Medicine, Kansas City, Missouri.
2. Department of Obstetrics and Gynecology, University of Missouri-Kansas City School of Medicine, Kansas City, Missouri.
3. Division of Clinical Research, Department of Obstetrics and Gynecology, Washington University in St. Louis, School of Medicine, Saint Louis, Missouri.
4. Department of Obstetrics and Gynecology, Meharry Medical College, Nashville, Tennessee.