Multiple Sclerosis Severity ScoreRichard Roxburgh, D. A. S. Compston, Stephen Sawcer et al.|Neurology|2005Cited by 959
<i>APOE</i> epsilon variation in multiple sclerosis susceptibility and disease severityRichard M. Burwick, Lisa F. Barcellos, Patricia P. Ramsay et al.|Neurology|2006Cited by 89