1. Departments of Basic Medical Sciences & Experimental Medicine; University of Lleida & IRBLleida; Lleida, Spain
2. Immunohistochemical and Biostatistics and Epidemiology Units; IRBLleida; Lleida, Spain
3. Institute of Neuropathology; Hospital de Bellvitge-IDIBELL; Barcelona, Spain
4. Neurosurgery Unit; Hospital Arnau de Vilanova; Lleida, Spain