title: The use of incident light in immunofluorescence applied to syphilis serology.
mesh_terms: D004470:Economics, Medical; D005453:Fluorescence; D005455:Fluorescent Antibody Technique; D006801:Humans; D008027:Light; D008856:Microscopy, Fluorescence / Q000295:instrumentation; D013588:Syphilis Serodiagnosis; D013997:Time Factors; D014210:Treponema pallidum / Q000276:immunology