Attention Network Test reveals alerting network dysfunction in multiple sclerosis. - Urbanek C; Weinges-Evers N; Bellmann-Strobl J; Bock M; Dörr J; Hahn E; Neuhaus AH; Opgen-Rhein C; Ta TM; Herges K; Pfueller CF; Radbruch H; et al. (Multiple sclerosis (Houndmills, Basingstoke, England), 2010)