1. Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
2. Centre for Nutrition, Prevention and Health Services, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
3. Internal Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
4. Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, The Netherlands