title: The control of specificity of skin test reagents.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000276:immunology; D006168:Guinea Pigs; D006801:Humans; D007202:Indicators and Reagents; D007916:Lepromin / Q000276:immunology; D012882:Skin Tests; D013045:Species Specificity; D014373:Tuberculin / Q000276:immunology; D014374:Tuberculin Test
chemical_list: D000942:Antigens, Bacterial; D007202:Indicators and Reagents; D014373:Tuberculin; D007916:Lepromin