Published on in Vol 16, No 3 (2014): March
1 School for Public Health and Primary Care (CAPHRI), Department of Health Promotion, Maastricht University, Maastricht, Netherlands
2 Faculty of Psychology and Educational Sciences, Open University of the Netherlands, Heerlen, Netherlands
3 School for Public Health and Primary Care (CAPHRI), Department of Methodology and Statistics, Maastricht University, Maastricht, Netherlands
4 School for Public Health and Primary Care (CAPHRI), Department of Family Medicine, Maastricht University, Maastricht, Netherlands