3Ewig S,Birkner N,Strauss B,et al. New perspectives on community -acquired pneumonia in 388406 patients. Results from a nationwidemandatory performance measurement programme in healthcare quality[J]. Thorax,2009,64(9) :1062.
4Zeng M,Wen Y,Liu LY,et al. Role of TNF—alpha,sTNF. R55 and siNF. R75 in Inflammation of Acute Exacerbations of Chronic ObstructivePulmonary Disease[ J] . Respiration,2009 ,78(4) :399.