Vertical saccadic slowing is associated with fatigue in multiple sclerosis.

Ruiz-Ortiz M, García-Cena C, Hernández-Ramírez R, Moreno-García S, Labiano-Fontcuberta A, García-Bellido Ruiz S, Petronila-Cubas C, Guzmán-Villamarín D E, Benito-León J