title: [Studies on the production of PCA in the guinea pig by aminobenzylpenicillin derivatives].
mesh_terms: D000667:Ampicillin / Q000031:analogs & derivatives / Q000032:analysis* / Q000276:immunology; D000818:Animals; D000939:Epitopes / Q000276:immunology; D006168:Guinea Pigs; D008297:Male; D010323:Passive Cutaneous Anaphylaxis; D011108:Polymers / Q000276:immunology* / Q000302:isolation & purification
chemical_list: D000939:Epitopes; D011108:Polymers; D000667:Ampicillin