In fact, the reason why 80 to 90 percent of those brain cancer surgeries ultimately fail is because of those small little extra margins that were left positive, those small little leftover tumors that were left there.
De hecho, la razón por la cual del 80 % a 90 % de esas neurocirugías de cáncer al final fallarán es debido a esos pequeños márgenes que se dejaron siendo positivo, esos pequeños tumores sobrantes que quedaron allí.