1. Experimental Neurobiology, Department of Neurosurgery, University of Bonn, Sigmund-Freud-Str. 25, 53105 Bonn, Germany
2. Bogomoletz Institute of Physiology, Bogomoletz St. 4, 01024 Kiev, Ukraine
3. Cellular Neurosciences, Max Delbrück Center for Molecular Medicine, Berlin, Robert Rössle Str., Germany