Apnea, Sleep

• Craig Hospital — Englewood, Colorado, United States
• James A. Haley Veterans' Hospital — Tampa, Florida, United States
• The Ohio State University — Columbus, Ohio, United States
• Albert Einstein Healthcare Network/Moss Rehabilitation Hospital — Elkins Park, Pennsylvania, United States

• Alessi Clinic — Beverly Hills, California, United States
• Otolaryngology Colorado — Greenwood Village, Colorado, United States
• ENT of Georgia — Atlanta, Georgia, United States
• Bluesleep clinic — New York, United States

• Otolaryngological Institute of Shanghai Jiao Tong University — Shanghai, Shanghai Municipality, China

• Federal University of São Paulo — São Paulo, Brazil

Not specified

• Washington University St Louis School of Medicine — St Louis, Missouri, United States

• Clinique Saint-Luc de Bouge — Bouge, Namur, Belgium

• VA Medical Center, Northport — Northport, New York, United States