1. EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, the Netherlands
2. Department of General Practice, VU University Medical Center, Amsterdam, the Netherlands
3. National Institute for Public Health and the Environment, Bilthoven, the Netherlands
4. Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
5. Department of Internal Medicine and Cardiovascular Research Institute Maastricht, University Medical Centre, Maastricht, the Netherlands