Corrigendum: Oligodendrocyte precursor cell-derived exosomes combined with cell therapy promote clinical recovery by immunomodulation and gliosis attenuation - Sarah Ingrid Pinto Santos; Santiago José Ortiz-Peñuela; Alessandro de Paula Filho; Ana Laura Midori Rossi Tomiyama; Lilian de Oliveira Coser; Juliano Coelho da Silveira; Daniele dos Santos Martins; Adriano Polican Ciena; Alexandre Leite Rodrigues de Oliveira; Carlos Eduardo Ambrósio (Frontiers in Cellular Neuroscience)