Single nucleotide polymorphism array analysis, a type of DNA testing, can help determine the prognosis for children with acute lymphoblastic leukemia. Researchers in Sweden found that the presence of changes in 14 genes was associated with relapse and a failure to respond to induction therapy. Lead researcher Dr. Linda Olsson said SNP array tests can give "a broader picture of the cancer cells in every individual" until advanced genomic sequencing techniques are widely used.

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