title: Rheumatoid factors as a cause for false positive IgM anti-toxoplasma fluorescent tests. A technique for specific results.
mesh_terms: D005189:False Positive Reactions; D005455:Fluorescent Antibody Technique; D006801:Humans; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D008722:Methods; D012217:Rheumatoid Factor; D014123:Toxoplasmosis / Q000175:diagnosis* / Q000276:immunology
chemical_list: D007074:Immunoglobulin G; D007075:Immunoglobulin M; D012217:Rheumatoid Factor