1 Department of Psychiatry and Psychotherapy, Medical University of Vienna, Austria.
2 Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Austria; Center for Biomarker Research in Medicine (CBmed), Graz, Austria.
3 Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Austria; Ludwig Boltzmann Institute Applied Diagnostics, Vienna, Austria.
4 Department of Psychiatry and Psychotherapy, Medical University of Vienna, Austria. Electronic address: [email protected].