we relate our experiences about the number of exacerbations that certain food preservatives such as sorbic acid , benzoic acid , sodium benzoate , metabisulfite and sodium nitrate can provoke in 62 patients affected with asa-triad in steroid dependent intrinsic asthma with nasal polyps and acute bronchospasm caused by aspirin ingestion , and in 80 patients with chronic urticaria ( c.u . ) as well as the first assays of the possible usefulness of the hrt ( histamine release test automatized using whole blood ) for the etiologic diagnosis process .
C0053225
benzoic acid
C0142805
sodium benzoate