[1] Univ Austral Chile, Fac Med, Inst Anat Histol & Pathol, Lab Stem Cells & Neuroregenerat, Valdivia, Chile
[2] Univ Austral Chile, Ctr Interdisciplinary Studies Nervous Syst CISNe, Valdivia, Chile
[3] Paracelsus Med Univ Salzburg, Inst Mol Regenerat Med, Salzburg, Austria
[4] Paracelsus Med Univ Salzburg, Spinal Cord Injury & Tissue Regenerat Ctr Salzbur, Salzburg, Austria
[5] Univ Austral Chile, Inst Pharm, Fac Sci, Valdivia, Chile
[6] Univ Cambridge, Wellcome Trust & MRC Cambridge Stem Cell Inst, Cambridge, England
[7] Univ Cambridge, Dept Clin Neurosci, Cambridge, England
[8] Queens Univ Belfast, Wellcome Wolfson Ctr Expt Med, Belfast, Antrim, North Ireland
[9] Paracelsus Med Univ Salzburg, Inst Expt Neuroregenerat, Salzburg, Austria
[10] Univ Andes, Fac Med, CIB, Santiago, Chile
[11] Austrian Cluster Tissue Regenerat, Vienna, Austria