title: Hemoglobin A2 in iron deficient beta-thalassemia heterozygotes.
mesh_terms: D000328:Adult; D000747:Anemia, Hypochromic / Q000097:blood* / Q000150:complications; D002648:Child; D005500:Follow-Up Studies; D006580:Genetic Carrier Screening; D006441:Hemoglobin A / Q000235:genetics*; D006443:Hemoglobin A2 / Q000235:genetics*; D006801:Humans; D007223:Infant; D013789:Thalassemia / Q000097:blood* / Q000150:complications / Q000235:genetics
chemical_list: D006441:Hemoglobin A; D006443:Hemoglobin A2