1. From the Institute for Psychiatric and Psychosomatic Psychotherapy, Central Institute of Mental Health, Mannheim, Germany; the Department of Psychosomatic Medicine and Psychotherapy, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; the Department of Psychiatry, Schulich School of Medicine and Dentistry, Western University, London, Ontario; and the Department of Health, Antwerp University, Antwerp, Belgium.