1. Community Medicine Department, Faculty of Medicine, Universitas Indonesia, Indonesia
2. Department of Epidemiology, Division Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Netherlands
3. Internal Medicine Department, Faculty of Medicine, Universitas Indonesia – Cipto Mangunkusumo Hospital, Indonesia
4. Department Social Dentistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Netherlands