title: Eliciting antigenicities of benzylpenicillin, ampicillin and carbenicillin preparations examined with the reagin-mediated passive cutaneous anaphylaxis system.
mesh_terms: D000667:Ampicillin / Q000276:immunology*; D000818:Animals; D000941:Antigens; D002228:Carbenicillin / Q000276:immunology*; D003864:Depression, Chemical; D006168:Guinea Pigs; D010323:Passive Cutaneous Anaphylaxis / Q000187:drug effects; D010400:Penicillin G / Q000276:immunology*
chemical_list: D000941:Antigens; D000667:Ampicillin; D002228:Carbenicillin; D010400:Penicillin G