英语语法分析

For example, only primaquine can kill vivax once it has entered the liver.

这句话你的理解是对的，应该是伯氨喹啉只能杀死进入肝脏的疟原虫，我的理解。

Objective To evaluate the efficacy and side effects of artemether combined with primaquine in the treatment of falciparum malaria.

目的观察蒿甲醚伍用伯氨喹治疗恶性疟的疗效和副作用。

There are lots of regiment to the treatment of P. vivax, this text will summarize the study progress which is directed at the relapse and primaquine to radical treatment of vivax malaria.

国内外对间日疟的治疗有很多方案，本文针对间日疟的复发及伯喹治疗间日疟的研究进展作一综述。