We first performed Sanger sequencing of coding region of MEFV gene in FMF cases to characterize MEFV mutations and to stratify patients based on the number of mutated alleles of MEFV. The most common MEFV mutation in our patient group was pMet694Val followed by p.Val726Ala, which is similar to other published reports in Lebanese and Middle Eastern populations.28, 29. This evidence concerns the gene MEFV and familial Mediterranean fever.