Vitamin D and seasonal fluctuations of gadolinium-enhancing magnetic resonance imaging lesions in multiple sclerosis.
A F
AF
Embry
L R
LR
Snowdon
R
R
Vieth
D006801:Humans; D008279:Magnetic Resonance Imaging; D009103:Multiple Sclerosis / Q000378:metabolism / Q000473:pathology* / Q000503:physiopathology; D012621:Seasons; D014807:Vitamin D / Q000008:administration & dosage*
D014807:Vitamin D