1)Pauwels RA, et al:START Investigators Group. Early intervention with budesonide in mild persistent asthma;A randomized, double-blind trial. Lancet 361:1071-1076, 2003
2)Vestbo J, et al:Long-term effect of inhaled budesonide in mild and moderate chronic obstructive pulmonary disease;A randomized controlled trial. Lancet 353:1819-1823, 1999
3)Pauwels RA, et al:Long-term treatment with inhaled budesonide in poersons with mild chronic obstructive pulmonary disease who continue smoking. N Engl J Med 340:1948-1953, 1999
4)Burge PS, et al:Randomised, double blind, placebo controlled study of fluticasone propionate in patients with moderate to severe chronic obstructive pulmonary disease:The ISOLDE trial. BMJ 320:1297-1303, 2000
5)Calverley P, et al:Salmeterol and fluticasone propionate and survival in chronic obstructive pulmonary disease. N Engl J Med 356:775-789, 2007