Table 1.
Demographics on the Volunteers
| Disease Group | Age (Y) | Sex (M/F) | Smoking (No/Yes) |
|---|---|---|---|
| Control Group | 47–76 | 17/3 | 15/5 |
| COPD Group | 55–81 | 21/6 | 14/13 |
Abbreviation: COPD, chronic obstructive pulmonary disease.
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