1. Institute of Epidemiology and Medical Biometry, Ulm University Ulm Germany
2. Agency for Preventive and Social Medicine (aks) Bregenz Austria
3. Department of Global Public Health and Primary Care University of Bergen Bergen Norway
4. Cancer Registry of Norway Oslo Norway
5. Department of Public Health and Clinical Medicine Umeå University Umeå Sweden
6. Department of Surgical Sciences Uppsala University Uppsala Sweden
7. Division of Mental and Physical Health Norwegian Institute of Public Health Bergen Norway
8. Department of Clinical Sciences Lund Lund University Lund Sweden
9. Department of Clinical Sciences Umeå University Umeå Sweden
10. Department of Medical Statistics, Informatics and Health Economics Medical University of Innsbruck Innsbruck Austria