Cyclosporine-Olanzapine Drug-Drug Interaction

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To the Editor: Aplastic anemia is a quantitative marrow failure caused by the decrease or disappearance of hematopoietic cells with no evidence of neoplastic infiltration or myeloproliferative syndrome. Aplastic anemia can affect the whole hematopoiesis or a single cell line. Because of pancytopenia, patients are at risk of infection, bleeding, and symptoms caused by anemia.