1. Center for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
2. Axonova Medical LLC, Philadelphia, PA, USA.
3. Center for Neurotrauma, Neurodegeneration and Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA, USA.
4. Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA.
5. New Jersey Center for Biomaterials, Rutgers University, Piscataway, NJ, USA.
6. Division of Plastic Surgery, Dartmouth Hitchcock Medical Center, Dartmouth College, Lebanon, NH, USA.