1. Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA
2. Department of Preventive Medicine and Population Health, University of Texas Medical Branch, Galveston, TX 77555, USA
3. Office of Biostatistics, Preventive Medicine and Population Health, University of Texas Medical Branch, Galveston, TX 77555, USA
4. Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
5. School of Health Professions, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA