Sleep Apnea, Obstructive

• Sjællands Universitetshospital/Zealand University Hospital Køge — Køge, Denmark
• Odense Universitetshospital — Odense, Denmark
• Centre Hospitalier Universitaire Grenoble Alpes — Grenoble, France
• Schlaf- und Beatmungszentrum — Blaubeuren Abbey, Baden-Wurttemberg, Germany

• Perth Head and Neck Surgery — Perth, Western Australia, Australia

Not specified

• Childrens Healthcare of Atlanta, Egleston — Atlanta, Georgia, United States

• Haydarpaşa Numune Education and Research Hospital — Istanbul, Turkey (Türkiye)

• Ghent University Hospital — Ghent, East-Fanders, Belgium

• Fisher & Paykel Healthcare Ltd — Auckland, East Tamaki, New Zealand

• University of Alberta — Edmonton, Alberta, Canada

• VA San Diego Healthcare System, San Diego, CA — San Diego, California, United States

• Johns Hopkins Bayview Medical Center — Baltimore, Maryland, United States