1. Unit of Nutritional Epidemiology; Institute of Environmental Medicine; Karolinska Institutet; Stockholm Sweden
2. Nutrition Research Laboratory; Department of Human Nutrition, Warsaw; University of Life Sciences-SGGW; Warsaw Poland
3. Department of Surgical Sciences; Uppsala University; Uppsala Sweden
4. Program in Epidemiology; Division of Public Health Sciences; Fred Hutchinson Cancer Research Center; Seattle WA USA
5. Department of Public Health Sciences; Karolinska Institutet; Stockholm Sweden