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Correlation between serum vitamin D and EDSS (A), MSSS (B), and ARMSS (C). Vitamin D was statistically correlated with all three disability scores obtained at last clinical follow-up ((A) rs: −0.34, p: 0.001; (B) rs: −0.28, p: 0.01; (C) rs: −0.27, p: 0.01).
