1. Department of Pathology; Cancer and Translational Medicine Research Unit; University of Oulu; Oulu Finland
2. Medical Research Centre; Oulu University Hospital and University of Oulu; Oulu Finland
3. Department of Internal Medicine; Respiratory Research Unit; Medical Research Centre; Oulu University Hospital and University of Oulu; Oulu Finland
4. Medical Informatics and Statistics Research Group; University of Oulu; Oulu Finland
5. Department of Pathology; Oulu University Hospital; Oulu Finland
6. Unit of Medicine and Clinical Research, Pulmonary Division; University of Eastern Finland and Centre of Medicine and Clinical Research, Division of Respiratory Medicine; Kuopio University Hospital; Kuopio Finland