[1] Department of Neurosurgery,
[2] Clinic Hospital of Santiago,undefined
[3] University of Santiago de Compostela,undefined
[4] Santiago de Compostela,undefined
[5] Spain,undefined
[6] Department of Pathology,undefined
[7] Clinic Hospital of Santiago,undefined
[8] University of Santiago de Compostela,undefined
[9] Santiago de Compostela,undefined
[10] Spain,undefined
[11] Department of Paediatrics,undefined
[12] Clinic Hospital of Santiago,undefined
[13] University of Santiago de Compostela,undefined
[14] Santiago de Compostela,undefined
[15] Spain,undefined
[16] Servicio de Neurocirugía,undefined
[17] Hospital Clínico,undefined
[18] La Choupana s/n,undefined
[19] 15706 Santiago de Compostela,undefined
[20] Spain e-mail: cimigeo@usc.es,undefined