1. Optimal assessment and management of chronic obstructive pulmonary disease (COPD);Siafakas, N.M.; Vermeire, P.; Pride, N.B.; Paoletti, P.; Gibson, J.; Howard, P.;Eur Respir J,1995
2. Standards for the diagnosis and care of patients with chronic obstructive pulmonary disease;of the American Lung Association, American Thoracic Society Medical Section;Am J Respir Crit Care Med,1995
3. Summary and recommendations of a Workshop on the investigative use of ®breoptic bronchoscopy and bronchoalveolar lavage in asthmatics;Am Rev Respir Dis,1985
4. De®nition and classi®cation of chronic bronchitis for clinical and epidemiological purposes. A report to the Medical Research Council by their Committee on the etiology of chronic bronchitis;Council, Medical Research;Lancet,1965
5. Aspects of chronic airow obstruction;Thurlbeck, W.M.;Chest,1977