Affiliation: | 1. Faculty of Arts and Sciences, Department of Environmental and Health Studies, Telemark University College, Hallvard Eikas plass, N-3800 B? i, Telemark, Norway 2. Department of Laboratory Medicine, Section of Medical Genetics, Telemark Hospital, N-3710, Skien, Norway 3. Institute of Human Genetics, University of Aarhus, Aarhus, Denmark 4. National Institute of Occupational Health, Copenhagen, Denmark 5. Department of Pathology, Ullevaal University Hospital, Oslo, Norway
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