title: The reaction to PPD-Battey. A new look.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001500:BCG Vaccine; D002648:Child; D003429:Cross Reactions; D005260:Female; D005843:Geography; D006801:Humans; D008297:Male; D008875:Middle Aged; D044469:Racial Groups; D014373:Tuberculin / Q000592:standards*; D014374:Tuberculin Test / Q000592:standards*; D014376:Tuberculosis / Q000276:immunology* / Q000517:prevention & control; D014481:United States
chemical_list: D001500:BCG Vaccine; D014373:Tuberculin