They fixed that procedure and after that the cases went down even more.

该厂家修正了生产漏洞之后,疾病的发生率下降的更多了

耶鲁公开课 - 生物医学工程探索课程节选

And as a result of writing it down and keeping track, he produced a very clear record, and scientific evidence, that using this procedure could protect a population of people from the disease.

凭借他的持续关注和追踪,他做出了十分清晰的记录,留下了科学证据,证明这种方法,可以让人们不再得这种病

耶鲁公开课 - 生物医学工程探索课程节选