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Polymerase chain reaction‐restriction fragment length polymorphism analysis of rs2230054 polymorphism of the CXCR2 gene. Lane M shows the size markers. 1, 2, 6: CC genotype (229 bp); 7: TT genotype (247 bp); 3, 4, 5, 8, 9, 10: TC genotype (247/229 bp)
