1. Inhaled glucocorticoids for asthma;Barnes;N Engl J Med,1995
2. Global Strategy for Asthma Management and Prevention, NHLBI/WHO Workshop Report;Global Initiative for Asthma,1995
3. Executive Summary: Guidelines for the Diagnosis and Management of Asthma;National Asthma Education and Prevention Program Expert Panel,1997
4. National Hospital Ambulatory Medical Care Survey: 1992 emergency department summary;McCaig,1994