Objective To investigate the correlation of jak2 gene polymorphisms with the generic susceptibility of acute lymphoblastic leukemia(ALL)in Chinese Han population and to explore the risk factors of children suffered from ALL. Methods One hundred and fourty-one ALL cases(patient group) and two hundred and thirty-nine healthy children(control group) were tested for the genotypes sequence of 10 single nucleotide polymorphisms(SNPs) in jak2 gene by SNa Pshot SNP technique, including rs10974944, rs10974947, rs123...