Department of Neurosurgery, Hospital General Universitario La Paz, Madrid.
Hospital Universitario Gregorio Marañón
Ramón y Cajal University Hospital
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.
University Hospital 12th October.
Department of Neurosurgery, University Hospital La Princesa, 28006 Madrid, Spain.
Puerta de Hierro University Hospital.
Department of Functional Neurosurgery and Gamma Knife Radiosurgery, Ruber International Hospital, Madrid, Spain.