title: Letter: Haem deficiency and chain synthesis.
mesh_terms: D000747:Anemia, Hypochromic / Q000097:blood; D000756:Anemia, Sideroblastic / Q000097:blood / Q000151:congenital; D005914:Globins / Q000096:biosynthesis*; D006418:Heme / Q000378:metabolism*; D006801:Humans; D007855:Lead Poisoning / Q000097:blood; D012156:Reticulocytes / Q000378:metabolism*
chemical_list: D006418:Heme; D005914:Globins