The “Big-Bang” for modern glial biology: Translation and comments on Pío del Río-Hortega 1919 series of papers on microglia

1. Sierra, A.
2. de Castro, F.
3. del Río-Hortega, J.
4. Rafael Iglesias-Rozas, J.
5. Garrosa, M.
6. Kettenmann, H.