이러한 환자들은 수술을 받은 경험이 있고, 머리에 높은 수치의 방사선치료를 받았고, 1차적 화학요법을 받았음에도 불구하고 실패하여 악성종양이 재발한 경우입니다.
So these are patients who had received surgery, high dose radiation to the head and first-line chemotherapy, and that had failed and their tumors had grown back.