Weatherby, S J No association between the APOE epsilon4 allele and outcome and susceptibility in primary progressive multiple sclerosis. [electronic resource] - Journal of neurology, neurosurgery, and psychiatry Apr 2000 - 532 p. digital Publication Type: Letter ISSN: 0022-3050 Standard No.: 10.1136/jnnp.68.4.532 doi Subjects--Topical Terms: AllelesApolipoproteins E--geneticsHumansMultiple Sclerosis, Chronic Progressive--genetics