1. Advancing asthma care: the glass is only half full!;Szefler;J Allergy Clin Immunol,2011
2. Mortality from asthma: a new epidemic in New Zealand;Jackson;BMJ,1982
3. Expert panel report: guidelines for the diagnosis and management of asthma;National Heart, Lung, and Blood Institute, National Asthma Education and Prevention Program,1991
4. National Institutes of Health, National Heart, Lung, and Blood Institute, Global Initiative for Asthma. Bethesda, Md.:1995, pub. no. 95-3659.