1. Department of Clinical and Health Psychology, Utrecht
University, Utrecht, the Netherlands, b.j.thoolen@fss.uu.nl
2. Department of Clinical and Health Psychology, Utrecht
University, Utrecht, the Netherlands
3. Department of Clinical and Health Psychology, Utrecht
University, Utrecht, the Netherlands, Netherlands Institute for Health Services Research,
Utrecht, the Netherlands
4. Julius Center for Health Sciences and Primary Care,
Utrecht, the Netherlands