An experimental approach promises to change the future for boys diagnosed today with cancer, allowing them to genetically father children of their own instead of facing a life of infertility. But will the science be ready when the children grow up, or are researchers subjecting families to another stressful decision for a hope that might not pan out? Alison McCook reports on the cutting-edge science—and controversy—surrounding the freezing of prepubescent tissue.
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McCook, A. A future, on ice. Nat Med 19, 958–961 (2013). https://doi.org/10.1038/nm0813-958
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