1. Third Department of Psychiatry, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece;
2. Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary;
3. MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary;
4. Private practice, Volos, Greece;
5. Universitätsklinik für Psychiatrie und Psychotherapie, Medizinische Universität, Vienna, Austria