1. Department of Anatomy; Histology and Embryology, Faculty of Medicine, University of Debrecen; Debrecen 4012 Hungary
2. Department of Pharmacology; Innsbruck Medical University; Innsbruck 6020 Austria
3. Division of Cell Biology and Neuroscience; Faculty of Medical Sciences, University of Fukui; Yoshida 910-1193 Japan
4. Institute of Science and Technology Austria; Klosterneuburg 3400 Austria
5. MTA-DE Neuroscience Research Group; Debrecen 4012 Hungary