author={Amandip S Gill and Devin K Binder},
OBJECTIVETo describe the contribution of Wilder Penfield to the early characterization of glial cells in collaboration with Pío Del Río-Hortega and Santiago Ramón y Cajal during his study in La Residencia des Estudiantes, Laboratorio de Histopatología in Madrid in 1924. METHODSComprehensive review of the English and Spanish-language literature pertinent to the history of Wilder Penfield (1891–1976), his associations with Pío Del Río-Hortega (1882–1945) and Santiago Ramón y Cajal (1852–1934… 

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