1. Institute for Research in Extramural Medicine, VU University Medical Center, Amsterdam, the Netherlands
2. Department of Internal Medicine, VU University Medical Center, Amsterdam, the Netherlands
3. Department of Medicine, Diabetes and Cardiovascular Disease Academic Unit, University College London Medical School, London, U.K.
4. Department of Endocrinology, VU University Medical Center, Amsterdam, the Netherlands
5. Department of Nutrition and Health, Faculty of Earth and Life Sciences, Vrije Universiteit, Amsterdam, the Netherlands