1. Human Alveolar Macrophage Proteolytic Enzyme Activities in Chronic Obstructive Pulmonary Disease 
W.L. Coudon, M.D., J.O. Harris, M.D. 
CHEST 
Volume 73, Issue 3, Pages (March 1978)
DOI: /chest
Copyright © 1978 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Distribution of subjects according to age and pulmonary function studies. The number above each bar indicates the number of subjects within the range of values indicated below the horizontal axis.
CHEST  , DOI: ( /chest )
Copyright © 1978 The American College of Chest Physicians Terms and Conditions

3. Figure 2
Elastase-like esterase and acid protease activities in alveolar macrophages obtained from surgically resected lungs of cigarette smokers with bronchogenic carcinoma (Ca) compared with enzyme activities previously reported for alveolar macrophages obtained from normal cigarette smokers. Height of the bar represents mean values with SE indicated.
CHEST  , DOI: ( /chest )
Copyright © 1978 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Alveolar macrophage elastase activity is plotted against various pulmonary function parameters measured in these subjects. Correlation coefficient (r) is given for each comparison.
CHEST  , DOI: ( /chest )
Copyright © 1978 The American College of Chest Physicians Terms and Conditions

5. Figure 4
Alveolar macrophage elastase-like esterase activity is plotted against various pulmonary function parameters measured in these subjects. Correlation coefficient (r) is given for each comparison.
CHEST  , DOI: ( /chest )
Copyright © 1978 The American College of Chest Physicians Terms and Conditions

6. Figure 5
Alveolar macrophage acid protease activity is plotted against various pulmonary function parameters measured in these subjects. Correlation coefficient (r) is given for each comparison.
CHEST  , DOI: ( /chest )
Copyright © 1978 The American College of Chest Physicians Terms and Conditions