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Cow’s milk allergy is a common food allergy in children with an incidence of 1–3%. The gold standard to diagnose cow’s milk allergy is a double-blinded placebo-controlled food challenge (DBPCFC). Previous studies show that reintroduction of cow’s milk is unsuccessful in 10–12% of patients. The aim of this retrospective study is to evaluate the effect of follow-up on the reintroduction of cow’s milk...