Table 3 Experimental groups
Groups | Number of rats |
|---|---|
Control group (the 3rd days after birth) | 6 |
Hyperoxia group (the 3rd days after birth) | 6 |
Control group (the 7th days after birth) | 6 |
Hyperoxia group (the 7th days after birth) | 6 |
Control group (the 14th days after birth) | 6 |
Hyperoxia group (the 14th days after birth) | 6 |