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.
La raison pour laquelle 80% à 90% des chirurgies du cerveau finissent par échouer est à cause de ces petites marges supplémentaires laissées, ces petits restes de tumeurs laissés derrière.