Demographic and clinical characteristics of children and adolescents with severe or difficult-to-treat asthma.
Chipps BE, Szefler SJ, Simons FE, Haselkorn T, Mink DR, Deniz Y, Lee JH. Demographic and clinical characteristics of children and adolescents with severe or difficult-to-treat asthma. J Allergy Clin Immunol. 2007 May; 119(5):1156-63.