1. Sleep Disorders Division, Department of Neurology, Vanderbilt University Medical Center, Nashville, Tennessee;
2. Department of Pediatrics, Autism Speaks Community Partner, Cincinnati, Ohio;
3. Department of Paediatrics University of Toronto Hospital for Sick Children, Toronto, Ontario, Canada;
4. Department of Pediatrics, Children's Hospital Colorado, Aurora, Colorado;
5. Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee; and
6. EMMES Corporation, Rockville, Maryland