1. Department of Preventive Medicine and Biometrics, Uniformed Services University School of Medicine, 4301 Jones Bridge Road, Bethesda, MD 20814, USA,
2. FMAS Corp., Rockville, MD, USA,
3. Department of Obstetrics and Gynecology, Division of Maternal‐Fetal Medicine, St. Barnabas Medical Center, Livingston, NJ, USA,
4. Department of Pediatrics, National Naval Medical Center and Uniformed Services University School of Medicine, Bethesda, MD, USA,
5. Office of the Actuary, Health Care Financing Administration, Baltimore, MD, USA,
6. National Institute on Aging, National Institutes of Health, Bethesda, MD, USA,
7. Division of Clinical Services, Office of the Assistant Secretary of Defense (Health Affairs), Washington, DC, USA