1. Comparative Medicine, The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria
2. E.motion Lichtblickhof, Vienna, Austria
3. Department of Behavioural Biology, University of Vienna, Vienna, Austria
4. Department of Physiology, Pathophysiology und experimental Endocrinology, University of Veterinary Medicine Vienna, Vienna, Austria
5. Faculty of Psychology, University of Basel, Basel, Switzerland
6. Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland
7. Faculty of Psychology and Educational Sciences, Open University of the Netherlands, Heerlen, The Netherlands
8. Karl Landsteiner Research Institute for Neurochemistry, Neuropharmacology, Neurorehabilitation and Pain Treatment Mauer-Amstetten, Mauer-Amstetten, Austria