ETH Zürich - Department of Biosystems Science and EngineeringUniversity of Zurich - University Clinic Balgrist, University of British Columbia (UBC) - International Collaboration on Repair Discoveries (ICORD), James J. Peters Veterans Affairs Medical Center, James J. Peters Veterans Affairs Medical Center, University of Saskatchewan, ETH Zürich - Department of Biosystems Science and Engineering, University of California, San Francisco (UCSF) - Weill Institute for Neurosciences, University of British Columbia (UBC) - International Collaboration on Repair Discoveries (ICORD), German Center for Neurodegenerative Diseases (DZNE), University of British Columbia (UBC) - International Collaboration on Repair Discoveries (ICORD), Trauma Center Murnau and University of British Columbia (UBC) - International Collaboration on Repair Discoveries (ICORD)