Results: the morphology, the size and the lie of the fetal external ear could be clearly seen after 20 week pregnancy.
结果：胎儿外耳在孕20周以后即可清晰显示其形态、大小及位置。
2
Then the nitric oxide in serum was measured. The threshold of auditory brainstem response (ABR) and the pathological morphology of outer hair cells in the inner ear were evaluated.
观察各种豚鼠血清中一氧化氮、听觉脑干反应、内耳外毛细胞的形态学变化。
3
Results:The morphology, the size and the lie of the fetal external ear could be clearly seen after 20 week pregnancy.