MEFV and familial Mediterranean fever: Kaşifoğlu Kaşifoğlu T T Calişir Calişir C C Cansu Cansu DU DU Korkmaz Korkmaz C C The frequency of sacroiliitis in familial Mediterranean fever and the role of HLA-B27 and MEFV mutations in the development of sacroiliitis The frequency of sacroiliitis in familial Mediterranean fever and the role of HLA-B27 and MEFV mutations in the development of sacroiliitis Clin Rheumatol Clin Rheumatol 2009 2009 28 28 1 1 41 41 46 46 18795391 18795391