Delayed hypersensitivity in vitro: its mediation by cell-free substances formed by lymphoid cell-antigen interaction.
D000818:Animals; D000941:Antigens; D046508:Culture Techniques; D006168:Guinea Pigs; D006968:Hypersensitivity, Delayed; D008198:Lymph Nodes / Q000166:cytology*; D010047:Ovalbumin; D011691:Puromycin / Q000494:pharmacology
D000941:Antigens; D011691:Puromycin; D010047:Ovalbumin