1. Dietary Exposure Assessment Group; Nutrition and Metabolism Section; International Agency for Research on Cancer; Lyon; France
2. Norwegian Institute of Public Health and University of Bergen; Kalfarveien; Bergen; Norway
3. Division of Human Nutrition; Wageningen University; EV Wageningen; The Netherlands
4. Biomarkers Group; Nutrition and Metabolism Section; International Agency for Research on Cancer; Lyon; France
5. Section for Pharmacology; University of Bergen; New Lab Building; Bergen; Hordaland; Norway