title: Improved methods for the demonstration of Treponema pallidum in the tissues.
mesh_terms: D005455:Fluorescent Antibody Technique; D006801:Humans; D008855:Microscopy, Electron, Scanning; D013591:Syphilis, Cutaneous / Q000382:microbiology*; D014210:Treponema pallidum / Q000302:isolation & purification*