title: Hematology problem.
mesh_terms: D000328:Adult; D002648:Child; D004612:Elliptocytosis, Hereditary / Q000097:blood*; D004906:Erythrocyte Count; D004913:Erythrocytes, Abnormal; D005260:Female; D006400:Hematocrit; D006441:Hemoglobin A / Q000032:analysis; D006801:Humans; D008297:Male; D009996:Osmotic Fragility; D013789:Thalassemia / Q000097:blood* / Q000235:genetics
chemical_list: D006441:Hemoglobin A