1. Psychiatry Service, Salamanca Healthcare Complex (CAUSA), 37007 Salamanca, Spain
2. Neuroscience Division, Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
3. Department of Psychiatry, Faculty of Medicine, University of Salamanca, 37001 Salamanca, Spain
4. Department of Psychiatry, University of Cambridge, Cambridge CB2 3EG, UK
5. Norwich Medical School, University of East Anglia, Norwich NR4 7UQ, UK