1. Asher MI, Montefort S, Björkstén B, Lai CKW, Strachan DP, Weiland CK, et al. Worldwide time trends in the prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and eczema in childhood: ISAAC Phases One and Three repeat multicountry cross-sectional surveys. Lancet 2006;368:733-43.

2. Mallol J, García-Marcos L, Solé D, Brand P, EISL Study Group. International prevalence of recurrent wheezing during the first year of life: variability, treatment patterns and use of health resources. Thorax 2010;65:1004-9.

3. Chong Neto HJ, Rosario NA, Grasselli EA, Silva FC, Bojarski LFM, Rosario CS, et al. Recurrent wheezing in infancy: epidemiological changes. J Pediatr (Rio J) 2011;87:547-50.

4. Chong Neto HJ, Rosario N, Solé D, Mallol J. Associated factors for recurrent wheezing in infancy. Allergy 2010;65:406-7.

5. Dela Bianca A, Wandalsen G, Mallol J, Solé D. Risk factors for wheezing disorders in infants in the first year of life living in São Paulo, Brazil. J Tropic Pediatr 2012;in press.

6. Stein RT, Holberg CJ, Morgan WJ, Wright AL, Lombardi E, Taussig LM, et al. Peak flow variability, methacholine responsiveness and atopy as markers for detecting different wheezing phenotypes in childhood. Thorax 1997;52:946-52.

7. Castro-Rodriguez JA, Holberg CJ, Wright AL, Martinez FD. A clinical index to define risk of asthma in young children with recurrent wheezing. Am J Respir Crit Care Med 2000;162(4 Pt1):1403-6.

8. Freire FA, Junior MFS, Wandalsen GF, Malozzi MC, Solé D. Perfil de lactentes sibilantes acompanhados em serviço de referência: avaliação de dez anos. Rev bras alerg imunopatol 2012;35:71-7.

9. Chong Neto HJ, Rosario NA, Grasselli EA, Silva FC, Bojarski LFM, Rosario CS, et al. Fármacos para asma na sibilância recorrente em lactentes: “primum non nocere”? Rev bras alerg imunopatol 2011;34:263-4.

10. Chong Neto HJ, Rosário NA. Are oral corticosteroids been used excessively in the treatment of wheezing in infants? J Bras Pneumol 2011;37:133-4.