If a tumor starts to grow and it doesn't develop a vascular supply it doesn't develop blood vessels in it, then it can't get bigger than a certain size and there's lots of evidence from many cancers showing that this is true.

如果肿瘤生长时,没有形成新的血管以维持供血,肿瘤内部也没有血管的话,它的大小将非常有限,这一结论已有许多科学成果可以证明

耶鲁公开课 - 生物医学工程探索课程节选

So one way to do this might be to - if you're trying to treat a heart that has disease and usually it's disease in one of the coronary vessels or the blood vessels that serve the heart, that provide blood to the heart.

其中一种方法可以是--,比如你想治疗患病的心脏,病变通常发生在冠状动脉,冠状动脉为心脏服务,为心脏供血的

耶鲁公开课 - 生物医学工程探索课程节选