1. Department of Public Health; Erasmus MC University Medical Center, Rotterdam
2. Kaiser Permanente Northwest Center for Health Research; Portland, Oregon
3. Unit of Cancer Epidemiology; Belgian Cancer Centre, Brussels
4. Group Health Research Institute; Seattle Washington
5. Center for Outcomes Research and Evaluation; Maine Medical Center Research Institute
6. Department of Pathology; Erasmus MC University Medical Center, Rotterdam
7. Meyers Primary Care Institute
8. Department of Biostatistics; Erasmus MC University Medical Center, Rotterdam
9. Health Economics Consultant