Chapter 17 of the book The epilepsies: Twenty years of research in Colombia. Capítulo 17 del libro Las epilepsias: Veinte años de investigación en Colombia. Academic editors: José William Cornejo Ochoa and Nicolás Pineda Trujillo.
This work was supported by the Colombian Administrative Department of Science, Technology and Innovation, COLCIENCIAS, currently Minciencias Colombia (Scholarship call 568).