[1] Univ Gothenburg, Sahlgrenska Acad, Inst Med, Ctr Sleep & Vigilance Disorders, Gothenburg, Sweden
[2] Sahlgrens Univ Hosp, Pulm Dept, Sleep Disorders Ctr, Gothenburg, Sweden
[3] Ege Univ, Dept Chest Dis, Izmir, Turkey
[4] Antwerp Univ Hosp, Multidisciplinary Sleep Disorders Ctr, Antwerp, Belgium
[5] Univ Antwerp, Antwerp, Belgium
[6] Univ Crete, Med Sch, Sleep Disorders Ctr, Dept Resp Med, Iraklion, Greece
[7] Inst TB & Lung Dis, Dept Resp Med 2, Warsaw, Poland
[8] Democritus Univ Thrace, Dept Pneumonol, Sleep Unit, Alexandroupolis, Greece
[9] San Luca Hosp, Sleep Disorders Ctr, Ist Auxol Italiano IRCCS, Milan, Italy
[10] Univ Milano Bicocca, Dept Med & Surg, Milan, Italy
[11] Sleep Disorders Ctr, Reinbek, Germany
[12] Univ Grenoble Alpes, INSERM, U1042, HP2 Lab, Grenoble, France
[13] Univ Coll Dublin, St Vincents Hosp Grp, Dept Resp & Sleep Med, Dublin, Ireland