1. Department of Psychology, Universidad Rey Juan Carlos, Alcorcón, Spain
2. Department of Biological and Health Psychology, Universidad Autónoma de Madrid, Madrid, Spain
3. Department of Neurology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
4. Fundación Maria Wolff, Madrid, Spain
5. Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University of Zürich and University Hospital Zurich, Switzerland
6. Department of Psychiatry, University of California San Diego, La Jolla, CA, USA