Exposure to smoke | MNRET (‰, mean ± SD) | ||||||
---|---|---|---|---|---|---|---|
0a | 24a | 48a | 72a | 0-dayb | 7-dayc | 14-dayd | |
Single inhalation to cigarette smoke | 1.75 ± 0.83 | 2.50 ± 0.50 | 2.25 ± 1.30 | 1.75 ± 0.43 | - | - | - |
Consecutive inhalation (Sham control) | - | - | - | - | 1.50 ± 0.41 | 1.75 ± 0.45 | 1.50 ± 1.08 |
Consecutive inhalation to cigarette smoke | - | - | - | - | 1.25 ± 1.10 | 2.00 ± 1.48 | 1.50 ± 0.83 |