1. Department of Medicine III (P.E.H.S., J.L., M.R., A.B., S.R.B., J.S.), Medical Faculty Carl Gustav Carus of the Technical University Dresden, 01307 Dresden, Germany
2. School for Physiology, Nutrition and Consumer Sciences (A.E.S.) of North-West University (Potchefstroom Campus), 2520 Potchefstroom, South Africa
3. Centre for Clinical Studies (M.H.), GWT-TUD GmbH, 01187 Dresden, Germany
4. Diabetes Unit (J.L.), Department of Health Promotion and Chronic Disease Prevention, National Public Health Institute, 00300 Helsinki, Finland
5. South Ostrobothnia Central Hospital (J.T.), 60200 Seinäjoki, Finland
6. Department of Public Health (J.T., J.L.), University of Helsinki, 00300 Helsinki, Finland