title: [Taxonomical study of spirochetes isolated from human periodontal lesions].
mesh_terms: D000328:Adult; D004269:DNA, Bacterial; D003773:Dental Plaque / Q000382:microbiology*; D006801:Humans; D010510:Periodontal Diseases / Q000382:microbiology*; D012689:Sequence Homology, Nucleic Acid; D013144:Spirochaetales / Q000145:classification* / Q000302:isolation & purification
chemical_list: D004269:DNA, Bacterial