Opportunistic infections of the retina in patients with aquaporin-4 antibody disease. gan George, J, Leite, M, Kitley, J, Jones, N, Cortes, N, Donati, M, Matthews, B, Calladine, D, Hillier, C, Yusuf, I, Munneke, R, Patel, C, Palace, J, Elston, J