1. a Department of Ischemia Research, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany
2. b Department of Radiology, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
3. c NeuroRepair Department, Mossakowski Medical Research Centre, Warsaw, Poland
4. d Department of Neurology, Institute of Clinical Medicine, University of Eastern, Kuopio, Finland
5. e Translational Centre for Regenerative Medicine, Leipzig University, Leipzig, Germany
6. f Department of Translational Medicine and Cell Technology, Fraunhofer Research Institution for Marine Biotechnology and Institute for Medical and Marine Biotechnology, University of Lübeck, Lübeck, Germany