. _:vb50941609 . _:vb50941609 . "NCI:C172823"^^ . _:vb50941609 . "delta beta-thalassemia"@en . "ORDO:231237"^^ . . "disease_ontology"^^ . . _:vb50941609 . _:vb50941609 . "DOID:0080773"^^ . "A beta thalassemia that is characterized by decreased or absent synthesis of both the delta- and beta-globin chains, which leads to a compensatory increase in fetal gamma-chain synthesis. This disorder results in a microcytic anemia that is clinically mild."^^ . .