RT Journal Article SR Electronic T1 True Vitamin D Deficiency with Secondary Hyperparathyroidism JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 2078 OP 2078 DO 10.3899/jrheum.160600 VO 43 IS 11 A1 AYSE NUR TUFAN A1 OZLEM SOYLUK A1 FATIH TUFAN YR 2016 UL http://www.jrheum.org/content/43/11/2078.1.abstract AB