title: Absence of antibodies to human immunodeficiency (AIDS) virus in dental health care workers in Johannesburg.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis*; D003727:Dental Auxiliaries; D003815:Dentists; D006678:HIV / Q000276:immunology*; D006801:Humans; D007124:Immunoenzyme Techniques; D013019:South Africa
chemical_list: D000914:Antibodies, Viral