Sleep Disorders, Intrinsic

• Hennepin County Medical Center — Minneapolis, Minnesota, United States
• Ohio Heart Hospital — Cincinnati, Ohio, United States
• The Ohio State University — Columbus, Ohio, United States
• Jiangsu Province Hospital — Nanjing, China

• Mission Internal Medical Group — Mission Viejo, California, United States
• Advanced Metabolic Care and Research Institute — Temecula, California, United States
• Clinical Research of South Florida — Coral Gables, Florida, United States
• SleepMed of Central Georgia — Macon, Georgia, United States

• University Hospital Zurich, Division of Pneumology — Zurich, Canton of Zurich, Switzerland

Not specified

• Centre d'Investigation et Recherche sur le Sommeil (CIRS) - Centre Hospitalier Universitaire Vaudois (CHUV) — Lausanne, Canton of Vaud, Switzerland

• Group Health Research Institute — Seattle, Washington, United States
• University of Washington — Seattle, Washington, United States

• Toronto Western Hospital, Department of Aneshtesia — Toronto, Ontario, Canada
• Mount Sinai Hospital, Department of Anesthesia — Toronto, Ontario, Canada

Not specified

• Western Psychiatry Centre — Hong Kong

• Butler Hospital — Providence, Rhode Island, United States