1. Chronic obstructive pulmonary disease;Barnes;N Engl J Med,2000
2. Global initiative for asthma. Global strategy for asthma management and prevention. NHLBI/WHO Workshop report. 2002 NIH Publication No. 02-3659.
3. Inhaled glucocorticoids for asthma;Barnes;N Engl J Med,1995
4. Anon. BTS guidelines for the management of chronic obstructive pulmonary disease. The COPD Guidelines Group of the Standards of Care Committee of the BTS;Thorax,1997
5. ATS standards for the optimal management of chronic obstructive pulmonary disease;Celli;Respirology,1997