1. Department for Nerve Regeneration, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.
2. Austrian Cluster for Tissue Engineering, Vienna, Austria.
3. Consorcio Regenero/Cells for Cells, Universidad de Los Andes, Faculty of Medicine, Laboratory of Nano-Regenerative Medicine, Santiago, Chile.
4. Department of Biomaterials & Tissue Engineering, University College London, UCL Eastman Dental Institute, London, United Kingdom.
5. Department of Pharmacology, University College London, UCL School of Pharmacy, London, United Kingdom.