1Newoehner DE, Erbland ML, Deupree RH, et al. Effect of systemic glucocorticoids on exacerbations of chronic obstructive pulmonary disease. N Engl J Med, 1999,340: 1941-1947.
2Niewoehner DE. The role of systemic corticosteroids in acute exacerbation of chronic obstructive pulmonary disease. Am J Respir Med, 2002,1 : 243-248.
3Pauwels RA, Buist AS, Calverley PM, et al. Global strategy for the diagnosis,management,and prevention of chronic obstructive pulmonary disease. NHLBI/WHO Global Initiative for Chronic Obstructive Lung Disease (GOLD) Workshop summary. Am J Respir Crit Care Med,2001,163: 1256-1276.