Evidence of the adverse effect is limited. 有害作用的证据是不足的。
Antitoxin is substance that acts against a poisonous substance and prevents it from having a harmful effect. 抗毒素是抵抗有毒物质并防止其产生有害作用的物质。
But the results of this new study show that the therapy does not have a detrimental effect on survival, and they should be reassuring, he commented. 他评论说，这项研究结果表明此疗法对于存活率没有不利作用，应该是可靠的。
