1. Seton Hall University School of Graduate Medical Education, New Jersey Neuroscience Institute at JFK Medical Center, Edison, NJ
2. University of Montreal Sleep Disorder Laboratory, Sacre Coeur Hospital, Montreal, QC, Canada
3. UMDNJ-Robert Wood Johnson Medical School, New Brunswick, NJ
4. Carle Clinic, University of Illinois, Urbana, IL
5. Johns Hopkins University, Baltimore, MD
6. Stanford University, Stanford, CA
7. Emory University Medical School, Atlanta, GA
8. Minnesota Regional Sleep Disorders Center, Hennepin County Medical Center, University of Minnesota Medical School, Minneapolis, MN
9. University of California, San Diego, San Diego, CA