Quantitative detection of epstein-barr virus DNA in cerebrospinal fluid and blood samples of patients with relapsing-remitting multiple sclerosis. oleh Clementina E Cocuzza, Fabrizio Piazza, Rosario Musumeci, Davide Oggioni, Simona Andreoni, Margherita Gardinetti, Letizia Fusco, Maura Frigo, Paola Banfi, Maria R Rottoli, Paolo Confalonieri, Monica Rezzonico, Maria T Ferrò, Guido Cavaletti, EBV-MS Italian Study Group