“…The multi-faceted Prevention of Asthma in Children trial comparing the combination of mite allergen reduction, breast-feeding (thereby reducing cow's milk protein exposure), and smoking cessation versus usual care showed an independent and significant effect of mite allergen reduction, breast-feeding, and maternal smoking on current wheezing at 2 years of age. 17 Epidemiologic observations confirmed the independent effects of different allergens (as well as smoking) on the incidence of asthma and on early indications of asthma in healthy subjects. 29,30 Also, a (secondary prevention) multifaceted intervention in asthmatic children was clearly shown to be effective when compared with monointervention studies.…”