Table 1.
Characteristics of the study subjects
| Subject No. | Gender | Age | Smoking status |
|---|---|---|---|
| 1 | F | 29 | + |
| 2 | F | 30 | + |
| 3 | M | 29 | + |
| 4 | M | 33 | + |
| 5 | F | 22 | − |
| 6 | M | 27 | − |
| 7 | M | 26 | − |
| 8 | F | 25 | − |
| 9 | M | 29 | − |
| 10 | F | 31 | − |
| 11 | M | 30 | − |
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