1. Department of Clinical Pharmacology, Medical Faculty Mannheim, Ruprecht-Karls-University Heidelberg, Mannheim, Germany
2. Department of Radiology, Vestre Viken Hospital Trust, Drammen, Norway
3. Department of Biochemistry, Justus-Liebig-University, Giessen Medical School, Giessen, Germany
4. Innlandet Hospital Trust, Brumunddal, Norway