1. Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz, Austria;
2. Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany;
3. Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany;
4. Department of Psychiatry and Neurobehavioral Science, University College Cork, Cork, Ireland;
5. Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria