Central role of JC virus-specific CD4+ lymphocytes in progressive multi-focal leucoencephalopathy-immune reconstitution inflammatory syndrome. by Aly, L, Yousef, S, Schippling, S, Jelcic, I, Breiden, P, Matschke, J, Schulz, R, Bofill-Mas, S, Jones, L, Demina, V, Linnebank, M, Ogg, G, Girones, R, Weber, T, Sospedra, M, Martin, R