1. Department of Clinical Sciences and Community Health Università degli Studi di Milano Milan Italy
2. Department of Research Cancer Registry of Norway Oslo Norway
3. Finnish Cancer Registry Helsinki Finland
4. International Agency for Research on Cancer Lyon France
5. Nykøbing Falster Hospital University of Copenhagen Denmark
6. Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm
7. Finnish Cancer Registry Institute for Statistical and Epidemiological Cancer Research Helsinki Finland
8. Faculty of Social Sciences, Tampere University Tampere Finland