They knew that their hospitals were the right place for patients, and they knew it was very unethical to run any kind of trial or experiment.
그들은 병원이 더 좋은 곳이라고 '알고' 있었죠. 그래서 그들은 그런 실험을 하는것은 매우 부도덕하다는 것을 '알고' 있었죠.