CRP and familial Mediterranean fever: When patients with heterozygous mutations in exon 10 were compared with those without FMF, renal and gastrointestinal tract involvement rates, median CRP and PVAS, and the need for steroids, pulse methylprednisolone, and cyclophosphamide were significantly higher (p = 0.03, p = 0.04, p = 0.04, p = 0.01, p = 0.01, p < 0.001, p = 0.02, respectively).