NEW YORK (GenomeWeb News) – Three genomic studies published in Nature this week are expanding understanding of the mutations and structural variations that define the four subtypes of medulloblastoma, a childhood brain cancer.

"We tend to treat all medulloblastomas as one disease without taking into account how heterogeneous the tumors are at the molecular level," Yoon-Jae Cho, a neurology researcher affiliated with Stanford University, the Broad Institute, Harvard Medical School, and Children's Hospital Boston, said in a statement.

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