Table 3.
Intensity in the trachea at 1st and 4th h
| Formula | Mean intensity±SD | |
|---|---|---|
| 1st h | 4th h | |
| F1 | 7.4056±0.908 | 12.085±0.1589 |
| F2 | 11.944±1.934 | 24.932±6.084 |
| F3 | 40.083±6.879 | 5.354±0.717 |
SD: Standard deviation
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