Plasma 25,OH vitamin D concentrations are not associated with rheumatoid arthritis (RA)-related autoantibodies in individuals at elevated risk for RA.
Feser M, Derber LA, Deane KD, Lezotte DC, Weisman MH, Buckner JH, Mikuls T, O'Dell J, Gregersen PK, Holers VM, Norris JM. Plasma 25,OH vitamin D concentrations are not associated with rheumatoid arthritis (RA)-related autoantibodies in individuals at elevated risk for RA. J Rheumatol. 2009 May; 36(5):943-6.