1. Sleep Medicine and Research Center, St. Luke’s Hospital, Chesterfield, Missouri;
2. Apnimed Inc., Cambridge, Massachusetts;
3. Clayton Sleep Institute, St. Louis, Missouri;
4. Pacific Research Network, an Evolution Research Group Portfolio Site, San Diego, California;
5. Thomas Roth Sleep Disorders and Research Center, Henry Ford Health System, Detroit, Michigan;
6. NeuroTrials Research Inc., Atlanta, Georgia;
7. Intrepid Research, Cincinnati, Ohio;
8. Sleep Medicine, Brian Abaluck, M.D., Malvern, Pennsylvania;
9. Sleep & Attention Disorders Institute, Sterling Heights, Michigan;
10. Oakland University William Beaumont School of Medicine, Rochester, Michigan; and
11. CTI Clinical Research Center, Cincinnati, Ohio