(Q57231949)
Statements
Vitamin D deficiency is common in patients with RA and linked to disease activity, but circulating levels are unaffected by TNFα blockade: results from a prospective cohort study (English)
Mike J L Peters
Willem F Lems
Paul T Lips
Gayle McKellar
Susan Knox
A Michael Wallace
Ben A C Dijkmans
Michael T Nurmohamed