title: Studies of delayed reactions using protoplasm from acid-fast bacilli as provoking antigen.
mesh_terms: D000818:Animals; D003593:Cytoplasm; D006168:Guinea Pigs; D006968:Hypersensitivity, Delayed; D009161:Mycobacterium / Q000276:immunology*; D009169:Mycobacterium tuberculosis / Q000276:immunology*; D011817:Rabbits