Antibody response in CM-allergic patients. Serum-specific (A) IgE (kU/L) and (B) IgG4 (µg/L) to CM, α-La, β-Lg, and CN before (Orange blocks) and after (Blue blocks) the OIT protocol in the CM-allergic patients who tolerated at least 200 mL of cow's milk (n=14). Bars represent mean±SEM. *** P