title: The Ava II psi beta polymorphism is linked to the common Mediterranean beta + thalassaemia mutation.
mesh_terms: D004247:DNA / Q000235:genetics*; D008040:Genetic Linkage; D006801:Humans; D011110:Polymorphism, Genetic; D013789:Thalassemia / Q000235:genetics*
chemical_list: D004247:DNA