(hi-mat-uh-poy-EE-suss) The process of making blood cells in the bone marrow bone marrow: The soft, spongy tissue inside most bones. Blood cells are formed in the bone marrow. .
AAMDSIF Awareness Week
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Aplastic Anemia Myelodysplastic Syndromes (MDS) Paroxysmal Nocturnal Hemoglobinuria (PNH) Donate
