AIDS: a faltering step.
D000163:Acquired Immunodeficiency Syndrome / Q000175:diagnosis*; D000914:Antibodies, Viral / Q000032:analysis*; D006678:HIV / Q000276:immunology*; D006801:Humans; D007258:Informed Consent; D018570:Risk Assessment; D006113:United Kingdom
D000914:Antibodies, Viral