놔두면 6개월을 못 넘길 것이라는, 사실상 사망진단을 받고도 1∼2년 이상 장기 생존한 사례가 없지 않아서다.
This is because there have been no cases of long-term survival for more than a year or two even after receiving a diagnosis of death, saying that if left unchecked, it will not last more than six months.