Sjögren sendromlu ve romatoid artritli hastalarda anti-CCP2 düzeylerinin araştırılması ve kollajen tip 1 ?1 S/s, vitamin d reseptör b/b allel tayini The assesment of anti-CCP2 levels and collagen type 1 ?1 S/s, vitamin d receptor B/b binding site polymorphisms in rheumatoid arthritis and sjogren's syndrome