The differences in mean birth body weight between 21 cases with cryotherapy and 57 cases without cryotherapy were statistically significant, but the differences in mean gestional age were not statistically significant. 21 cases (41 eyes) received cryother
The differences in mean birth body weight between 21 cases with cryotherapy and 57 cases without cryotherapy were statistically significant, but the differences in mean gestional age were not statistically significant. 21 cases (41 eyes) received cryother
两组早产儿在统计上平均出生体重有显著差异而平均怀孕周数则无显著差异。