Neuromyelitis optica: Evaluation of 871 attacks and 1,153 treatment courses. - Kleiter I; Gahlen A; Borisow N; Fischer K; Wernecke KD; Wegner B; Hellwig K; Pache F; Ruprecht K; Havla J; Krumbholz M; Kümpfel T; et al. (Annals of neurology, 2016)