The study shows that paracervical block is safe, effective and easy to perfom for artificial abortion.

这说明宫旁阻滞是一种操作简便、安全、效果良好的方法，对于开展无痛性人流有推广的价值。

youdao

The study shows that paracervical block is safe, effective and easy to perfom for artificial abortion.

这说明宫旁阻滞是一种操作简便、安全、效果良好的方法，对于开展无痛性人流有推广的价值。

youdao