Sleep Disorders, Intrinsic

• University of Arizona — Tucson, Arizona, United States
• Arkansas Center for Sleep Medicine — Little Rock, Arkansas, United States
• Mark G. Goetting — Portage, Michigan, United States
• Ohio State University — Columbus, Ohio, United States

• Sleep Disorders Research Program Brigham and Women's Hospital — Boston, Massachusetts, United States

• Center for Music in the Brain — Aarhus, Denmark

• Fisher & Paykel Healthcare — Auckland, New Zealand

Not specified

• Sleep Disorders Center of Alabama — Birmingham, Alabama, United States
• Stanford Medicine Sleep Center — Palo Alto, California, United States
• Pacific Research Network — San Diego, California, United States
• Empire Clinical Research — Upland, California, United States

• Shands and UF Sleep Disorder Center — Gainesville, Florida, United States

• Stanford Sleep Medicine — Redwood City, California, United States

• University of Michigan Health System — Ann Arbor, Michigan, United States

• State research center of preventive medicine — Moscow, Russia
• Research and Education Center of Moscow State University named after M.V. Lomonosov — Moscow, Russia
• First Moscow State Medical University — Moscow, Russia