title: Decreased hemoglobin A2 concentration in iron deficiency anemia.
mesh_terms: D000328:Adult; D000747:Anemia, Hypochromic / Q000097:blood*; D006455:Hemoglobins, Abnormal / Q000096:biosynthesis*; D006801:Humans; D013053:Spectrophotometry
chemical_list: D006455:Hemoglobins, Abnormal