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  • Title: [pH and IgA determination of nasal secretions--possible use in occupational medicine-rhinologic diagnosis in relation to function].
    Author: Hummel K, Winkler U, Hennebach U.
    Journal: Z Gesamte Hyg; 1990 Jun; 36(6):320-2. PubMed ID: 2392849.
    Abstract:
    For the recognition of nasal lesions in exposure to non-toxic metallic dusts with crystalline SiO2-content in 100 foundry workers the in vitro determinations of the pH-value as well as the statement of IgA in the serum and nasal discharge were performed by means of simple radial immunodiffusion according to Mancini. The two functional-diagnostic method did not show any significant differences in comparison to the control groups. At present an use in the clinical and occupational-medical practice cannot be recommended.
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