1. The health economics of asthma and rhinitis, II: assessing the economic impact;Sullivan;J Allergy Clin Immunol,2001
2. Expert Panel Report 2: guidelines for the diagnosis and management of asthma;National Asthma Education and Prevention Program,1997
3. Expert Panel Report: guidelines for the diagnosis and management of asthma update on selected topics-2002;National Asthma Education and Prevention Program;J Allergy Clin Immunol,2002
4. Global strategy for asthma management and prevention;Global Initiative for Asthma (GINA),2003
5. Asthma guidelines: an assessment of physician understanding and practice;Doerschug;Am J Respir Crit Care Med,1999