B-Cell Enrichment and Epstein-Barr Virus Infection in Inflammatory Cortical Lesions in Secondary Progressive Multiple Sclerosis - Magliozzi, R; Serafini, B; Rosicarelli, B; Chiappetta, G; Veroni, C; Reynolds, R; Aloisi, F (JOURNAL OF NEUROPATHOLOGY AND EXPERIMENTAL NEUROLOGY, 2013)