1 National Center on Sleep Disorders Research, Division of Lung Diseases, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland.
2 Office of Research on Women's Health, National Institutes of Health, Bethesda, Maryland.
3 Office on Women's Health, U.S. Department of Health and Human Services, Washington, District of Columbia.
4 Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, University of Arizona Health Sciences Center for Sleep and Circadian Sciences, University of Arizona, Tucson, Arizona.
5 Sleep for Science Research Laboratory, Departments of Medicine and Psychiatry and Human Behavior, The Alpert Medical School of Brown University, Brown University, Providence, Rhode Island.