title: [Endotoxin-like substance extracted from pure cultivated oral spirochetes (author's transl)].
mesh_terms: D001431:Bacteriological Techniques; D003124:Colorimetry; D004731:Endotoxins / Q000302:isolation & purification*; D006801:Humans; D009055:Mouth / Q000382:microbiology*; D013144:Spirochaetales / Q000032:analysis*
chemical_list: D004731:Endotoxins