1. St. John’s Regional Medical Center, Joplin, MO
2. Rainbow Babies and Children’s Hospital, Department of Pediatrics, Case Western Reserve University, Cleveland, OH
3. Walter Reed Army Medical Center, Pulmonology/Critical Care, Washington, DC
4. University of Chicago, Pediatric Neurology, Chicago, IL
5. University of Pennsylvania, Ralston House/Institute on Aging, Philadelphia, PA
6. Methodist Hospital, Methodist Sleep Disorders Center, Memphis, TN
7. University of Texas Medical School, Houston, TX
8. Summerlin Medical Towers, Las Vegas, NV
9. Metropolitan Sleep Disorders Center, St. Paul, MN