To find out the correlation of fetal head and neck abnormality to chromosome disease through ultrasound screening survey.

通过超声筛查胎儿头颈部异常以找出其与染色体病的相关性。

youdao

To find out the correlation of fetal head and neck abnormality to chromosome disease through ultrasound screening survey.

通过超声筛查胎儿头颈部异常以找出其与染色体病的相关性。

youdao