1. Department of Medical Sciences, Nutrition, Clinical Chemistry, Uppsala University Hospital, SE-751 85 Uppsala, Sweden
2. IPM, Karolinska Institute, SE-171 77 Stockholm, Sweden
3. Swedish Dairy Association, SE-105 46 Stockholm, Sweden
4. Department of Biosciences, Unit for Preventive Nutrition, Karolinska Institute, SE-141 57 Huddinge, Sweden
5. Department of Medical Sciences, Clinical Chemistry, Uppsala University Hospital, SE-751 85 Uppsala, Sweden
6. Uppsala University Children's Hospital, SE-751 85 Uppsala, Sweden