title: Investigation of the role of endotoxin in periapical inflammation.
mesh_terms: D000539:Alveolar Process / Q000473:pathology; D000818:Animals; D004285:Dogs; D004731:Endotoxins / Q000009:adverse effects* / Q000276:immunology; D010485:Periapical Periodontitis / Q000209:etiology*; D012475:Salmonella / Q000276:immunology; D013997:Time Factors; D014092:Tooth Root / Q000473:pathology
chemical_list: D004731:Endotoxins