title: Letter: Kveim reagent.
mesh_terms: D000941:Antigens; D006801:Humans; D007202:Indicators and Reagents; D008198:Lymph Nodes; D012507:Sarcoidosis / Q000175:diagnosis* / Q000276:immunology; D012882:Skin Tests
chemical_list: D000941:Antigens; D007202:Indicators and Reagents