Spirochaetes in periodontal disease.
D006801:Humans; D010510:Periodontal Diseases / Q000382:microbiology*; D012329:RNA, Bacterial / Q000032:analysis; D014208:Treponema / Q000145:classification / Q000235:genetics / Q000472:pathogenicity; D014211:Treponemal Infections
D012329:RNA, Bacterial