title: [Immunological study of oral Spirochaeta with special reference to its localization in the gigival tissue and PCA activities].
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial; D005881:Gingiva / Q000382:microbiology*; D006168:Guinea Pigs; D006801:Humans; D010323:Passive Cutaneous Anaphylaxis; D013142:Spirochaeta / Q000276:immunology / Q000302:isolation & purification*
chemical_list: D000942:Antigens, Bacterial