1. Department of Periodontology, Academic Centre for Dentistry Amsterdam University of Amsterdam and Vrije Universiteit Amsterdam Amsterdam The Netherlands
2. Department of Oral Public Health, Academic Centre for Dentistry Amsterdam University of Amsterdam and Vrije Universiteit Amsterdam Amsterdam The Netherlands
3. Knowledge Center Achmea Health Insurance Company Leusden The Netherlands
4. Department of Vascular Medicine, Amsterdam University Medical Center University of Amsterdam Amsterdam The Netherlands
5. Department of Internal Medicine Spaarne Gasthuis Hoofddorp The Netherlands