1. Lentis, Psychiatric Institute, Center for Integrative Psychiatry, Groningen, the Netherlands
2. Department of Clinical Psychology and Experimental Psychopathology, University of Groningen, Groningen, the Netherlands
3. Faculty of Theology and Religious Studies, University of Groningen, Groningen, the Netherlands
4. University Medical Center Groningen, University Center for Psychiatry, Rob Giel Research Center, University of Groningen, Groningen, the Netherlands