Obstructive Sleep Apnea

• Central Phoenix Medical Clinic — Phoenix, Arizona, United States
• Arizona Research Center — Phoenix, Arizona, United States
• Medical Investigations — Little Rock, Arkansas, United States
• Neuro-Pain Medical Center — Fresno, California, United States

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

• Sleep Laboratory, Heart Institute, Pulmonary Division, Hospital das Clínicas da Universidade de São Paulo — São Paulo, Brazil

• National University Hospital — Singapore
• Singapore General Hospital — Singapore

Not specified

• University of Pennsylvania — Philadelphia, Pennsylvania, United States
• University of Iceland — Reykjavik, Iceland

• Harran University Faculty of Dentristry,Departman of Endodonti — Sanliurfa, Outside of the US, Turkey (Türkiye)

• Hospital for Sick Children — Toronto, Ontario, Canada

• The Hospital for Sick Children — Toronto, Ontario, Canada

• UCSD Sleep Research — La Jolla, California, United States