| Affiliation: | 1. Department of Occupational and Environmental Medicine, Telemark Hospital, Skien, Norway;2. Clinic of Internal Medicine, ?stfold Hospital Trust, Fredrikstad, Norway;3. Unilabs Telelab AS, Skien, Norway;4. Department of Environmental and Health Sciences, Telemark University College, B?, Telemark, Norway;5. Department of Medicine, Telemark Hospital, Skien, Norway;6. Center for Laboratory Medicine, ?stfold Hospital Trust, Fredrikstad, Norway;7. Department of Medical Microbiology, Unilabs Telelab AS, Skien, Norway;8. Department of Medical Biochemistry, Telemark Hospital, Skien, Norway;9. Department of Research and Development, Telemark Hospital, Skien, Norway |
