1 Division of Medicine, Department of Pulmonary Diseases, Turku University Hospital and University of Turku, Hämeentie 11, FIN-20520, Turku, Finland. msmyll@utu.fi.
2 Centre for Clinical Informatics, Hospital District of Southwest Finland, Turku, Finland.
3 Division of Medicine, Department of Pulmonary Diseases, Turku University Hospital and University of Turku, Hämeentie 11, FIN-20520, Turku, Finland.
4 Sleep Research Centre, Department of Pulmonary Diseases and Clinical Allergology, University of Turku, Turku, Finland.