In other studies, bone marrow transplants cured severe sickle cell disease in almost two hundred children.

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Their major organs are already too damaged to have all their bone marrow destroyed.

VOA: special.2009.12.16

Ten patients in all were treated in a study with donated bone marrow.

VOA: special.2009.12.16

Doctors can collect it with a needle. But people who donate marrow must first have tests to make sure they are a good match for the patient.

VOA: special.2009.12.16

The healthy marrow causes new blood cells to form.

VOA: special.2009.12.16

Marrow is a soft, spongy tissue inside bones.

VOA: special.2009.12.16

Then the patients received healthy marrow.

VOA: special.2009.12.16