1. The Leuven Centre for Algology & Pain Management; University Hospitals Leuven; Belgium
2. Faculty of Psychology and Educational Sciences; KU Leuven; Belgium
3. Department of Physical Medicine and Rehabilitation; University Hospitals Leuven; Belgium
4. Department of Anesthesiology and Algology; KU Leuven; Belgium
5. Department of Clinical & Experimental Medicine, Translational Research Center for Gastrointestinal Disorders (TARGID); KU Leuven; Belgium
6. Research Department of Clinical, Educational and Health Psychology; University College London; UK
7. Yale Child Study Center; New Haven USA
8. Consultation-Liaison Psychiatry; University Psychiatric Center KU Leuven, Campus Gasthuisberg; Belgium