title: beta-thalassemia: studies of the molecular defect in the "D" family.
mesh_terms: D005796:Genes; D006801:Humans; D008297:Male; D009154:Mutation; D012333:RNA, Messenger; D013789:Thalassemia / Q000235:genetics* / Q000503:physiopathology
chemical_list: D012333:RNA, Messenger