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Change in anti-Derp1 antibody levels. Serum IgE and IgG4 (optical densities) against Derp1 allergen are plotted as lines connecting pre- (baseline) and post- (6 weeks) treatment levels for treated and untreated children. Participants who were egg positive at baseline are highlighted in grey thick lines. Stars represent significant difference of mean absorbencies at *P < 0.05 or **P < 0.01.
