Published on in Vol 16, No 1 (2014): January
1 Maastricht University, Department of Work & Social Psychology, Maastricht, The Netherlands
2 Public Health Service South Limburg, Department of Sexual Health, Infectious Disease and Environmental Health, Geleen, The Netherlands
3 Maastricht University, Department of Medical Microbiology, Maastricht, The Netherlands
4 STI AIDS Netherlands, Amsterdam, The Netherlands
5 AMC - University of Amsterdam, Department of General Practice, Amsterdam, The Netherlands