Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia, United States of America. Laboratory Branch, Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America. Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America. Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia. Grady Healthcare System, Atlanta, Georgia, United States of America. Department of Medicine, Division of Endocrinology, Emory University School of Medicine, Atlanta, Georgia, United States of America. Department of Obstetrics, University of Pittsburg, Gynecology and Reproductive Sciences, Pittsburg, Pennsylvania, United States of America.