JC Virus in CD34+ and CD19+ Cells in Patients With Multiple Sclerosis Treated With Natalizumab. Frohman EM, Monaco M C, Remington G, Ryschkewitsch C, Jensen PN, Johnson K, Perkins M, Liebner J, Greenberg B, Monson N, et al. JAMA Neurol. 2014 Mar 24. PMID: 24664166. Abstract CommentRecommendBookmarkWatch