1. Department of Psychology Colorado State University Fort Collins Colorado USA
2. Oregon Institute for Occupational Health Sciences Oregon Health & Science University Portland Oregon USA
3. Department of Psychology Portland State University Portland Oregon USA
4. School of Aging Studies University of South Florida Tampa Florida USA
5. Department of Biobehavioral Health Pennsylvania State University University Park Pennsylvania USA
6. Department of Medicine and Neurology Brigham and Women's Hospital Boston Massachusetts USA
7. Division of Sleep Medicine Harvard Medical School Boston Massachusetts USA