10%; positive QAlb: 47.1% vs. 89% of samples (N= 96), and the MRZ reaction, the most specific laboratory marker of MS known so far, in 100% (N= 29). If present at all, intrathecal IgG synthesis was low, often transient and mostly restricted to acute attacks. Intrathecal IgM synthesis was present in 21% and exclusively detectable […]