1. Department of Psychiatry, Centre Hospitalier Universitaire de Liège, Liège, Belgium
2. Psychoneuroendocrinology Unit, University of Liège, Liège, Belgium
3. Collaborative Antwerp Psychiatric Research Institute (CAPRI), Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
4. Department of Psychiatry, Radboud University Medical Centre, Nijmegen, The Netherlands
5. Department of neuropsychiatry, Centre Hospitalier Spécialisé Notre-Dame des Anges, Liège, Belgium