title: Refractory anaemia.
mesh_terms: D000368:Aged; D000741:Anemia, Aplastic / Q000209:etiology / Q000473:pathology* / Q000628:therapy; D001853:Bone Marrow / Q000473:pathology; D006412:Hematopoietic Stem Cells / Q000473:pathology; D006801:Humans