1. Alan Edwards Pain Management Unit McGill University Health Centre Quebec Canada
2. Division of Rheumatology McGill University Health Centre Quebec Canada
3. Departments of Anesthesiology, Medicine (Rheumatology), and Psychiatry University of Michigan Medical School Ann Arbor Michigan
4. Health Care Center for Pain Medicine Mental Health Saarbrücken‐ St.Johann Saarbrücken Germany
5. Department of Psychosomatic Medicine and Psychotherapy Technische Universität München München Germany