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 ^[5] Blic J, Deschildre A, Pin I, Dubus Pour Le Grapp JC. When and how to modify the management of asthma in children over the age of 4. Rev Mal Respir. 2009 Oct;26(8):827-35.

^[6] von Elm E, Altman DG, Egger M, Pocock SJ, Gøtzsche PC, Vandenbroucke JP. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies. STROBE Initiative. J Clin Epidemiol. 2008 Apr;61(4):344-9

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^[8] Peroni DG et al. Preschool asthma in Italy: prevalence, risk factors and health resource utilization. Respiratory Medicine. 2009; 103(1):104-8" 

^[9] Van Dellen QM, S. K., Bindels PJ, Ory FG, Bruil J, van Aalderen WM; PEACE Study Group. (2007). Predictors of asthma control in children from different ethnic origins living in Amsterdam. Respir Med. 101(4): 779-785.

^[10] Hammer SC, R. C., van Rij C, Heynens J, Droog R, Jöbsis Q, Hendriks HJ, Dompeling E. (2008). Actual asthma control in a paediatric outpatient clinic population: do patients perceive their actual level of control? Pediatr Allergy Immunol. 19(7): 626-633.

^[11] Badiola C, B. L., Plaza V, Prieto L, Molina J, Villa JR, Cimas E. (2009). "Women, patients with severe asthma, and patients attended by primary care physicians, are at higher risk of suffering from poorly controlled asthma." Prim Care Respir J 18(4): 294-299.

^[12] Cabanas Rodriguez ER, G. B. F., Cabanas Rodriguez P, Leis R, Martinez B, Cabanas R, Valdes Cuadrado L, Tojo R. (2008). Predictors of the persistence of childhood asthma. Allergol Immunopathol (Madr). 36(2): 66-71.

^[13] Kuehni CE, F. U. (2002 ). Age-related differences in perceived asthma control in childhood: guidelines and reality. Eur Respir J 20(4): 880-889.

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[15] From STROBE, statement strengthening the reporting of observational studies in epidemiology.