Increased MRI activity and immune activation in two multiple sclerosis patients treated with the monoclonal anti-tumor necrosis factor antibody cA2Bob W. van Oosten, C. Polman, Frederik Barkhof et al.|Neurology|1996Cited by 733
The Brief Repeatable Battery of Neuropsychological Tests: normative values allow application in multiple sclerosis clinical practiceJan Boringa, C.H. Polman, Leo de Sonneville et al.|Multiple Sclerosis Journal|2001Cited by 289
Neuropsychological impairment in multiple sclerosis patients: the role of (juxta)cortical lesion on FLAIRR.H.C. Lazeron, Frederik Barkhof, ChH Polman et al.|Multiple Sclerosis Journal|2000Cited by 90