2Pilette C,Godding V, Kiss R, et al. Reduced epithelial expression of secretory component in small airways correlates with airflow obstruction in chronic obstructive pulmonary disease [J]. Am Respir Cirt Care Med, 2001 ;163( 1 ) :185-94.
3Gary T. Recommendation for the management of COPD[J]. Chest,2000 ; 117 (suppl) :23s.
4Dorinsky PM, Peisner C, Ferguson GT, et al. The combination of ipratropium and albuterol optimizes pulntonary function reversibility testing in patients with COPD [J]. Chest, 1999 ; 115 (4) :966-71.
3Westbrook PR,Stubbs SE,Sessler AD, et al. Effects of anesthesia and muscle paralysis on respiratory mechanics in normal man. J Appl Physiol, 1973,34:81-86.
4Fontanari P, Burnet H, Zattara-Hartmann MC, et al.Changes in airway resistance induced by nasal or oral intermittent positive pressure ventilation in normal individuals. Eur Respir J,1999,13: 867-872.
