1 Section for Evidence Based Medicine in Psychiatry and Psychotherapy, Department of Psychiatry and Psychotherapy, Technical University of Munich, School of Medicine, Ismaninger Straße. 22, 81675, Munich, Germany. stefan.leucht@tum.de.
2 Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, Social Foundation Bamberg, Teaching Hospital of the University of Erlangen, Erlangen, Germany.
3 Psychiatric Institute, University of Illinois at Chicago, Chicago, IL, USA.
4 Department of Psychiatry, John Hopkins University, Baltimore, MD, USA.