title: Letter: Specific immobilization of the treponeme--a phenomenon known long ago but sunk into oblivion and rediscovered?
mesh_terms: D049673:History, 20th Century; D006801:Humans; D012425:Russia (Pre-1917); D013587:Syphilis / Q000266:history / Q000276:immunology; D014208:Treponema / Q000276:immunology; D014209:Treponema Immobilization Test