1. Klinik für Psychiatrie, Psychotherapie und Psychosomatik, Psychiatrische Universitätsklinik Zürich
2. Klinik für Psychiatrie und Psychotherapie, Universitätsspital Zürich, Universität Zürich
3. Department of Psychiatry, National OCDs Specialist Centre, Hertfordshire Partnership NHS Foundation Trust, Queen Elizabeth II Hospital, Welwyn Garden City, Hertfordshire, United Kingdom
4. Postgraduate Medical School, University of Hertfordshire, College Lane, Hatfield, United Kingdom
5. Department of Psychiatry and Behavioural and Clinical Neurosciences Institute, University of Cambridge, Cambridge, United Kingdom
6. Collegium Helveticum, a Joint Research Institute between the University of Zurich & ETH Zurich
7. Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, São Paulo, Brazil