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bone marrow transplantation

Bone marrow transplantation is a medical procedure to replenish bone marrow – the soft tissue within bones that produces new blood cells. Bone marrow transplants are necessary when marrow has been destroyed by drug or radiation therapy for cancer, often leukemia. A bone marrow donor is usually a close relative of the patient.

For more details, see blood and marrow stem cell transplant.

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Source: National Human Genome Research Institute