The p-toluene sulfonic acid test for systemic lupus erythematosus.
D001557:Benzenesulfonates; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000175:diagnosis*; D014050:Toluene
D001557:Benzenesulfonates; D014050:Toluene; C029501:4-toluenesulfonic acid
LUPUS ERYTHEMATOSUS/diagnosis