Impact of natalizumab on cognitive performances and fatigue in relapsing multiple sclerosis: a prospective, open-label, two years observational study. Iaffaldano P, Viterbo R G, Paolicelli D, Lucchese G, Portaccio E, Goretti B, Direnzo V, D'Onghia M, Zoccolella S, Amato M P, et al. PLoS One. 2012; 7(4):e35843. Epub 2012 Apr 25. PMID: 22558238. Abstract CommentRecommendBookmarkWatch