title: Inherited absence of OKT4 lymphocyte antigen in a chronically transfused patient with homozygous sickle cell disease.
mesh_terms: D000293:Adolescent; D000755:Anemia, Sickle Cell / Q000235:genetics / Q000276:immunology*; D000941:Antigens / Q000032:analysis*; D005260:Female; D006801:Humans; D013601:T-Lymphocytes / Q000145:classification / Q000276:immunology*
chemical_list: D000941:Antigens