title: A new electron microscopic method for the demonstration of Treponema pallida in the tissues embedded in paraffin, with reference to applying frozen resin cracking method.
mesh_terms: D000818:Animals; D005404:Fixatives; D006652:Histological Techniques; D006801:Humans; D008855:Microscopy, Electron, Scanning; D010232:Paraffin; D011817:Rabbits; D014210:Treponema pallidum / Q000648:ultrastructure*
chemical_list: D005404:Fixatives; D010232:Paraffin