英语语法分析

A however striae gravidarum does not have the influence to the health.

员然妊娠纹对身体健康无影响。

Objective To search for the best method for treatment of hyperemesis gravidarum.

目的：寻找治疗妊娠剧吐的最佳方法。

Pulsed steroid therapy is an effective treatment for intractable hyperemesis gravidarum.

静脉注射甾类激素治疗顽固性妊娠呕吐的有效性研究。