Obesity Hypoventilation Syndrome

• Centre Hospitalier Universitaire d'Angers — Angers, France
• Centre Hospitalier de Béziers — Béziers, France
• Hôpital Haut- Lévêque — Bordeaux, France
• Centre Hospitalier de Cannes — Cannes, France

Not specified

• Hospital San Pedro de Alcántara. Servicio Extremeño de Salud — Cáceres, Spain

• Oxford Radcliffe NHS Trust Hospitals — Oxford, United Kingdom

• Cabinet de Pneumologie Grenoble SUD — Échirolles, France
• Laboratoire MEDIBIO Les Cedres — Échirolles, France
• Hôpital Michallon, Laboratoire EFCR et Sommeil — Grenoble, France
• Cabinet de Pneumologie Perpignan — Perpignan, France

• Guy's and St Thomas' NHS Trust — London, United Kingdom

• Hospital de Manacor — Manacor, Balearic Islands, Spain
• Hospital Son Espases — Palma de Mallorca, Balearic Islands, Spain
• Hospital Son Llàtzer — Palma de Mallorca, Balearic Islands, Spain
• Hospital de la Santa Creu i Sant Pau — Barcelona, Spain

• Royal Brompton Hospital — London, United Kingdom

• Guy's and St. Thomas' NHS Trust — London, United Kingdom
• Royal Brompton Hospital — London, United Kingdom

• Sleep Laboratory, Grenoble Univeristy Hospital — Grenoble, France