MRI characteristics of early PML-IRIS after natalizumab treatment in patients with MS. Wattjes MP, Wijburg MT, Vennegoor A, Witte BI, de Vos M, Richert ND, Uitdehaag B M, Barkhof F, Killestein J, Dutch-Belgian Natalizumab-associated PML study group J Neurol Neurosurg Psychiatry. 2015 Sep 14. PMID: 26369555. Abstract CommentRecommendBookmarkWatch