IL6 and cystic fibrosis: Materials and methods: Using pyrosequencing and sequencing we have genotyped 12 variants inTNF (rs361525, rs1800629),CXCL8 (rs4073, rs2227306, rs2227307, rs188378669),IL1B (rs16944, rs1143634, rs1142639, rs1143627),IL6 (rs1800795) andIL10 (rs1800896) genes in a cohort of 55 Polish patients with diagnosed cystic fibrosis and controls.