5Beeh K M, Beier J, Kornmann O, et al. Long-term repeatability of induced sputum cells and inflammatory markers in stable, mode- rarely severe COPD[J]. Chest, 2003, 123(3):778-783.
6Di Stefano A, Caramori G, Ricciardolo F L, et al. Cellular and mole- cular mechanisms in chronic obstructive pulmonary disease: an overview[J]. Clin Exp Allergy, 2004, 34(8): 1156-1167.
7Hamann K J, Dorscheid D R, Ko F D, et al. Expression of Fas(CD95) and FasL(CD95L)in human airway epithelium[J]. Am J Respir Cell Mol Biol, 1998, 19(4):537-542.
8Kodama T, Matsuyama T, Kuribayashi K. et al. IL-8 deficiency selec- tively enhances allergen induced eosinoPhilia in mice[J]. J Allergy Clin lmmunol, 2000, 105(1):45-53.