[1] Haraldsplass Deaconess Hospital,Norwegian Organization for Quality Improvement of Laboratory Examinations
[2] Holter legekontor,Department of Clinical Science
[3] University of Bergen,Department of Thoracic Medicine
[4] Haukeland University Hospital,Department of Global Public Health and Primary Care
[5] University of Bergen,Department of Medical Biochemistry and Pharmacology
[6] Haukeland University Hospital,undefined