Sleep Wake Disorders

• GSK Investigational Site — San Diego, California, United States
• GSK Investigational Site — Atlanta, Georgia, United States
• GSK Investigational Site — New York, United States
• GSK Investigational Site — Durham, North Carolina, United States

• Fisher & Paykel Healthcare — Auckland, New Zealand

• GSK Investigational Site — Berlin, Germany

• GSK Investigational Site — Verona, Veneto, Italy

• University of Pennsylvania — Philadelphia, Pennsylvania, United States

• Stanford University School of Medicine — Stanford, California, United States

Not specified

• GSK Investigational Site — Tranent, West Lothian, United Kingdom

• 012 — Los Angeles, California, United States
• 009 — Orange, California, United States
• 014 — Spring Hill, Florida, United States
• 013 — Indianapolis, Indiana, United States

Not specified