title: Biologic false-positive FTA-ABS test in drug-induced lupus erythematosus.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000188:drug therapy; D005189:False Positive Reactions; D005455:Fluorescent Antibody Technique; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000139:chemically induced* / Q000276:immunology; D008297:Male; D008875:Middle Aged; D011342:Procainamide / Q000009:adverse effects* / Q000627:therapeutic use; D013587:Syphilis / Q000175:diagnosis* / Q000276:immunology; D014210:Treponema pallidum / Q000276:immunology*
chemical_list: D011342:Procainamide