Anti-JCV antibody levels in serum or plasma further define risk of natalizumab-associated PML. Plavina T, Subramanyam M, Bloomgren G, Richman S, Pace A, Lee S, Schlain B, Campagnolo D, Belachew S, Ticho B Ann Neurol. 2014 Oct 1. PMID: 25273271. Abstract CommentRecommendBookmarkWatch