Harper said that Amgen would apply for approval for the new use in bone tumor prevention the first half of this year.

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Kaplan -- who also is not involved in Ware's care -- said it's also possible Ware had a benign bone tumor that weakened the tibia before his fall.

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Someday he envisions cancer centers storing giant banks of premade T cells to match the patients' bone marrow and tumor types.

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