Sleep Apnea Syndromes

• Department of Medical Research, Holstebro Hospital — Holstebro, Ringkoebing County, Denmark
• Department of Medical Research — Holstebro, Denmark
• Holstebro Hospital, Department of Medical Research — Holstebro, Denmark

• Department of Medicine, Holstebro Hospital — Holstebro, Ringkoebing County, Denmark

• Heart Institute (InCor) — São Paulo, Brazil

• University Hospital Ghent — Ghent, Belgium

• University of Indiana Medical Center — Indianapolis, Indiana, United States
• University Ear, Nose and Throat Specialists — Cincinnati, Ohio, United States
• Department of OTO-HNS Medical College of Wisconsin — Milwaukee, Wisconsin, United States

• University Ear, Nose and Throat Specialists — Cincinnati, Ohio, United States

• Walter Reed Army Medical Center — Washington D.C., District of Columbia, United States

• Morristown Memorial Hospital — Morristown, New Jersey, United States

Not specified

• Sleep Laboratory; Department of Psychiatry, Geneva University Hospital — Chêne-Bourg, Canton of Geneva, Switzerland