1. Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
2. ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
3. Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
4. Department of Pathology, Hospital Pedro Hispano, Matosinhos, Portugal
5. Unit of Neuropathology, Centro Hospitalar do Porto, Porto, Portugal
6. Department of Neurosurgery, Centro Hospitalar do Porto, Porto, Portugal
7. Hospital Dr. Nélio Mendonça, Funchal, Madeira, Portugal
8. Radiotherapy Service, Centro Hospitalar do Montijo, Setúbal, Portugal