1. Department of Pathology (Neuropathology) and Instituto de Investigación i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
2. Department of Pathology, Virgen de la Salud Hospital, Toledo, Spain
3. Department of Medical Oncology, University Hospital 12 de Octubre, Madrid, Spain
4. Department of Pathology, Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium
5. Department of Neurosurgery, Virgen de la Salud Hospital, Toledo, Spain
6. Department of Pathology, Alvaro Cunqueiro Hospital, Vigo, Spain
7. Department of Biochemistry and Genetics, University of Navarra School of Sciences, Pamplona, Spain
8. IdiPaz Research Unit, La Paz University Hospital, Madrid, Spain