title: IgG subclasses of fluorescent treponemal antibodies: correlation with complement fixation and clinical stage.
mesh_terms: D000974:Antibodies, Antinuclear / Q000032:analysis; D000907:Antibodies, Bacterial / Q000032:analysis*; D003176:Complement C3 / Q000032:analysis; D003181:Complement C4 / Q000032:analysis; D003168:Complement Fixation Tests; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D007106:Immune Sera / Q000302:isolation & purification; D007074:Immunoglobulin G / Q000032:analysis / Q000145:classification*; D008180:Lupus Erythematosus, Systemic / Q000276:immunology; D008297:Male; D013587:Syphilis / Q000276:immunology; D014210:Treponema pallidum / Q000276:immunology*
chemical_list: D000974:Antibodies, Antinuclear; D000907:Antibodies, Bacterial; D003176:Complement C3; D003181:Complement C4; D007106:Immune Sera; D007074:Immunoglobulin G