1. Department of Chest DiseasesEge University Izmir Turkey
2. Sleep and Vigilance LaboratorySahlgrenska Academy Gothenburg Sweden
3. Biomedical Department of Internal and Specialist Medicine (DiBiMIS), Section of PneumologyUniversity of Palermo Palermo Italy
4. CNR Institute of Biomedicine and Molecular Immunology Palermo Italy
5. Sleep Disorders Center Reinbeck Germany
6. Department of Respiratory MedicineHospital de Santa Maria Lisbon Portugal
7. Respiratory Failure UnitG. Papanikolaou Hospital Thessaloniki Greece
8. Servei Pneumologia Hospital Arnau de Vilanova and Hospital Santa Maria Lleida Spain
9. CIBERes Madrid Spain
10. 2nd Department of Respiratory MedicineInstitute of Tuberculosis and Lung Diseases Warsaw Poland
11. Sleep Disorders CentreGuy's and St Thomas' Hospitals London UK
12. Department of Respiratory MedicineSt. Vincent's University Hospital Dublin Ireland
13. Université Grenoble Alpes Grenoble France
14. Division of Medicine, Department of Pulmonary Diseases, Turku University Hospital and Sleep Research Centre, Department of Pulmonary Diseases and Clinical AllergologyUniversity of Turku Finland
15. Servei Pneumologia Hospital Arnau de Vilanova and Hospital Santa Maria Lleida and CIBERes Madrid Spain
16. Biomedical Department of Internal and Specialistic Medicine (DiBiMIS), Section of PneumologyUniversity of Palermo; and CNR Institute of Biomedicine and Molecular Immunology Palermo Italy
17. Department of Internal Medicine, Pneumonology and AllergologyWarsaw Medical University Warsaw Poland
18. Sleep Disorders Unit, Department of Respiratory Medicine, Medical SchoolUniversity of Crete Greece
19. Sleep Medicine Center, Department of NeuroscienceUniversity of Split School of Medicine Split Croatia
20. Multidisciplinary Sleep Disorders CentreAntwerp University Hospital and University of Antwerp Antwerp Belgium
21. Service dÉxplorations Fonctionnelles Multidisciplinaires Hospital Antoine Beclere Clamart France
22. Schlafmedizinisches Zentrum, Charité – Universitätsmedizin Berlin Germany
23. Department of Sleep MedicineSahlgrenska University Hospital Gothenburg Sweden
24. Sleep Disorders Center, St. Adolf Stift, Reinbeck Germany
25. Department of Respiratory Medicine and Tuberculosis, Faculty of Medicine, P.J.Safarik University and L. Pasteur University Hospital Kosice Slovakia
26. Sleep Laboratory, ENT Department, Førde Central Hospital Førde Norway
27. Université Grenoble Alpes, INSERM HP2 (U1042) and Grenoble University Hospital Grenoble France
28. Instituto Auxologico Italiano, Ospedale San Luca Milan Italy
29. Hospital San Pedro de Alcàntara Cáceres Spain
30. Department of Respiratory Medicine, St. Vincent´s University Hospital Dublin Ireland
31. Hospital Clinic i Provincial de Barcelona, Barcelona, IDIBAPS Barcelona and CIBERes Madrid Spain
32. Respiratory Failure Unit, G. Papanikolaou Hospital, Thessalonika Greece
33. Institute of Tuberculosis and Lung Diseases Warsaw Poland
34. Centre for Sleep and Waking Disorders, Department of Neurology, First Faculty of MedicineCharles University Prague, and Inspamed, Neurology and Sleep Laboratory Prague Czech Republic
35. Department of Sleep Medicine, Royal Infirmary Edinburgh Scotland
36. Unité de Médecine du Sommeil, Hopital Antoine‐Beclere Clamart France
37. Pulmonary and SleepDisorders Unit, St. Vincent'sUniversityHospital Dublin Ireland
38. Sleep Disorders Center, Pulmonary DepartmentUniversity Hospital Heraklion Greece
39. SleepDisorders CentreUniversity of Giessen Lung Centre, Giessen Germany
40. Institute of Tuberculosis and Lung Diseases Department of Diagnosis and Treatment of Respiratory Failure Warsaw Poland
41. Université Grenoble Alpes INSERM HP2 (U1042) and Grenoble University Hospital Grenoble France
42. Department of Respiratory Medicine, Hospital de Santa Maria Lisbon Portugal
43. Sleep Unit, Department of PneumonologyDemocritus University of Thrace Alexandroupolis Greece
44. Institute Psychophysiology and Rehabilitation Palanga Lithuania
45. Institute of CardiologyUniversity of Latvia Riga Latvia