title: Changing patterns of acquired immunodeficiency syndrome in hemophilia patients--United States.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D001779:Blood Coagulation Factors / Q000627:therapeutic use; D017977:Deltaretrovirus; D006467:Hemophilia A / Q000628:therapy; D006801:Humans; D008297:Male; D014481:United States
chemical_list: D001779:Blood Coagulation Factors