Study: Multiple Sclerosis “Homocysteine and Vitamin B12 in Multiple Sclerosis” Baig, Shahid, M. and Qureshi, G. Ali, Biogenic Amines, 1995;11(6):479-485. In evaluating CSF and blood levels in 16 multiple sclerosis patients between 20 and 63 years of age (12 females), it was found that the mean values of vitamin B12 in the serum and cerebrospinal […] More