title: Disordered immune regulation in haemophiliacs not exposed to commercial factor VIII.
mesh_terms: D004340:Drug Contamination; D005169:Factor VIII / Q000009:adverse effects; D006467:Hemophilia A / Q000276:immunology* / Q000628:therapy; D006801:Humans; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*
chemical_list: D005169:Factor VIII