1. University of Florida, Gainesville, FL
2. Southern Arizona VA Healthcare System, Tucson, AZ
3. VA Boston Healthcare System, Boston, MA
4. Department of Pediatrics, University of Chicago, Chicago, IL
5. University of Minnesota, Minneapolis, MN
6. Division of Pulmonary and Critical Care Medicine, University of Washington, Seattle, WA
7. Children's Hospital of Philadelphia, Philadelphia, PA
8. Case Western University, Cleveland, OH
9. University of Arizona, Tucson, AZ
10. Harvard Medical School, Boston, MA
11. Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston MA
12. Division of Pediatric Pulmonology, Children's Hospital of Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California
13. American Academy of Sleep Medicine, Darien, IL