Published on in Vol 17 , No 10 (2015) :October

1 School for Public Health and Primary Care (CAPHRI), Maastricht University, Maastricht, NL
2 Maastricht University, Department of Health Promotion, Maastricht, NL
3 Open University, Heerlen, NL
Published on in Vol 17 , No 10 (2015) :October
1 School for Public Health and Primary Care (CAPHRI), Maastricht University, Maastricht, NL
2 Maastricht University, Department of Health Promotion, Maastricht, NL
3 Open University, Heerlen, NL