1. Department of Pathophysiology, Faculty of Medical SciencesUniversity of Warmia and MazuryOlsztynPoland
2. Department of Neurology and Neurosurgery, Faculty of Medical SciencesUniversity of Warmia and MazuryOlsztynPoland
3. Neurocentrum Bellevue, NeurologyZurichSwitzerland
4. Laboratory of Regenerative Medicine, University of Warmia and MazuryOlsztynPoland
5. Foundation for nerve cells regenerationOlsztynPoland