title: Macrocytosis and leukopenia in Down's syndrome.
mesh_terms: D004314:Down Syndrome / Q000097:blood* / Q000150:complications; D004909:Erythrocyte Indices; D004913:Erythrocytes, Abnormal; D006801:Humans; D007970:Leukopenia / Q000097:blood / Q000150:complications*; D008534:Megaloblasts