1. Vanderbilt University Medical Center, Nashville, Tennessee
2. University of Michigan, Ann Arbor, Michigan
3. Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
4. University of Miami, Miller School of Medicine, Miami, Florida
5. VA Boston Healthcare System, Brigham and Women’s Hospital, Boston, Massachusetts
6. University of Colorado, Aurora, Colorado
7. American Academy of Sleep Medicine, Darien, Illinois