title: Reactivity of human lymphocytes to aggregated and nonaggregated PPD-tuberculin.
mesh_terms: D001546:Bentonite / Q000494:pharmacology*; D002247:Carbon Isotopes; D004247:DNA / Q000096:biosynthesis; D006801:Humans; D008213:Lymphocyte Activation / Q000187:drug effects*; D012995:Solubility; D013936:Thymidine / Q000378:metabolism; D014373:Tuberculin / Q000494:pharmacology*; D014461:Ultracentrifugation
chemical_list: D002247:Carbon Isotopes; D014373:Tuberculin; D001546:Bentonite; D004247:DNA; D013936:Thymidine