3Moonie SA, Sterling DA, Figgs L, et al. Asthma status and severity affects missed school days. J Sch Health, 2006,76:18-24.
4Pearce N, Ait-Khaled N, Beasley R, et al. Worldwide trends in the prevalence of asthma symptoms: Phase three of the international study of asthma and allergies in childhood (ISAAC). Thorax, 2007 [ Epub ahead of print].
5Rabe KF, Adachi M, Lai CKW, et al. Worldwide severity and control of asthma in children and adults: the global asthma insights and reality surveys. J Allergy Clin Immunol, 2004,114:40-47.
6International Primary Care Airways Group (IPAG). Chronic Airways Diseases, a guide for primary care physicians [S/OL]. Singapore : World Organization of Family Doctors (Wonca), 2005 [2007-07-18]. http ://www. globalfamilydoctor, corn.
7global initiative for asthma (GINA). GINA workshop report, Global strategy of asthma management and prevention[R/OL]. National Heart Lung and Blood Institute and the World Health Organization. 200612007-07-18]. http://www, ginasthma, com.
8Basaran S, Guler-Uysal F, Ergen N, et al. Effects of physical exercise on quality of life, exercise capacity and pulmonary function in children with asthma. J Rehabil Med, 2006,38 : 130-135.