Department of Neurosurgery, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
Department of Neurosurgery, Hospital Sanitas La Zarzuela, Madrid, Spain.
Neurosurgery Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.
Department of Neurosurgery, University Hospital La Princesa, 28006 Madrid, Spain.
Department of Functional Neurosurgery and Gamma Knife Radiosurgery, Ruber International Hospital, Madrid, Spain.