Published on in Vol 15 , No 2 (2013) :February
1 Maastricht University/CAPHRI, Department of Health Promotion, Maastricht University, Maastricht, Netherlands
2 Open University of the Netherlands, Department of Psychology, Open University of the Netherlands, Heerlen, Netherlands
3 Maastricht University/CAPHRI, Department of General Practice, Maastricht, Netherlands
4 Maastricht University/CAPHRI, Department of Health Promotion, Maastricht University, The Netherlands, Netherlands