We didn't have the same methods of diagnosis that we do now, so maybe it was just not diagnosed then.

那时医生的诊断手段远不及现在,因此,这些病可能只是诊断不出来

耶鲁公开课 - 生物医学工程探索课程节选

For example, how cancer diagnosis has improved, what are some of the causes of cancer in the environment around us and how can we protect ourselves from it, and we'll talk about treatments for it as well.

例如癌症的诊断手段是如何进步的,我们周围环境中有哪些致癌因素,以及我们如何保护自己免受其害,我们也会讨论到癌症的治疗手段

耶鲁公开课 - 生物医学工程探索课程节选