One-year Survey of Anaphylaxis in Outpatient Children Allergic to Peanuts, Walnuts/Hazelnuts, Shellfish

The Parents of the cases children will compile a questionnaire including questions about general information on the family, on life and food habits, on indoor environment, on health status, on clinical aspects of the allergy, on the access to diagnostic and treatment resources

The Parents of the control children will compile a questionnaire including questions about general information on the family, on life and food habits and on indoor environment.