1. Institute
of Public Health and Clinical Nutrition, University of Eastern Finland, Post
Office Box 1627, FI-70211 Kuopio, Finland
2. Technical Research Centre of Finland (VTT), Post
Office Box 1000, Tietotie 2, FI-02044 Espoo, Finland
3. Department
of Food and Environmental Sciences, University of Helsinki, Post Office Box 66, Agnes Sjöbergin Katu 2, FI-00014 Helsinki, Finland
4. Steno Diabetes Center, Niels Steensens Vej 2, DK-2820 Gentofte, Denmark