And Andrew had been doing his own bits of research, and one of the things that he had been told and that he'd learned from studying the literature was that there's actually a big bottleneck.
앤드류가 혼자 알아본 바에 의하면 그리고 주변에서 듣기도 하고 자료도 공부하다 보니 신약 개발에 커다란 장애물이 있다는 것을 깨달았답니다.