Fatih Kocyigit, B., Akyol, A. and Tulay Koca, T. (2021) “The relationship between vitamin D level and disease activity and focal erosion in rheumatoid arthritis ”, Annals of Medical Research, 26(1), pp. 0037–0041. Available at: http://annalsmedres.org/index.php/aomr/article/view/1412 (Accessed: 3 July 2024).