1 Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas; Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas.
2 Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas; Office of Biostatistics, Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, Texas.
3 Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas; Office of Biostatistics, Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, Texas; Departments of Internal Medicine and Sealy Center on Aging, University of Texas Medical Branch, Galveston, Texas; Institute for Translational Science, University of Texas Medical Branch, Galveston, Texas.