Department of Surgery, Mayo Clinic College of Medicine, Rochester, MN, USA. Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN, USA. Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA. Department of Obstetrics and Gynecology, New York University Grossman School of Medicine, New York, NY, USA. Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Division of Geriatrics, Department of Medicine, Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA. Utah Lipid Center, Salt Lake City, UT, USA. Department of Internal Medicine, Division of Women's Health Internal Medicine, Mayo Clinic, AZ, USA. Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, CA, USA. Department of Acute & Chronic Care, School of Nursing, Department of Epidemiology & Biostatistics, Milken Institute School of Public Health, The George Washington University, Washington DC, USA. Department of Radiology, Mayo Clinic College of Medicine, Rochester, MN, USA. Kronos Longevity Research Institute, Phoenix, AZ, USA. Phoenix Veterans Administration Health Care System, Phoenix, AZ, USA.