title: Further observations on histoplasmin sensitivity in the United States.
mesh_terms: D000293:Adolescent; D000328:Adult; D003045:Coccidioides / Q000276:immunology; D003429:Cross Reactions; D004812:Epidemiologic Methods; D006658:Histoplasma / Q000276:immunology; D006659:Histoplasmin; D006660:Histoplasmosis / Q000175:diagnosis / Q000453:epidemiology; D006801:Humans; D008297:Male; D008887:Military Medicine; D012423:Rural Health; D012882:Skin Tests; D014376:Tuberculosis / Q000453:epidemiology; D014481:United States; D014505:Urban Population
chemical_list: D006659:Histoplasmin