1. Center for Social and Affective Neuroscience, Department of Clinical and Experimental Medicine; Linköping University; Linköping Sweden
2. Department of Psychiatry and Behavioral Sciences; University of Miami Miller School of Medicine; Miami FL USA
3. Department of Psychopharmacology; University of Heidelberg; Mannheim Germany
4. Department of Addiction Medicine, Central Institute of Mental Health; University of Heidelberg; Mannheim Germany