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The effect of intranasal allergen challenge on eosinophil levels. Mice were challenged with allergen or saline intranasally, and 18 hours after the last allergen exposure the mice were sacrificed and eosinophil levels in the blood (a), BALF (b), small intestine (c), stomach (d), and esophagus (e) were determined. Data are expressed as mean ± SEM (n = 8–12 mice in each group). The mouse strains were a mixture of 129 SvEv, BALB/c, and FVB/N. NS, not significant.
