highly significantp < 0.006
Another study conducted across four Swiss institutions proved that a total RT dose of > 56 Gy was a highly significant positive predictive factor of OS (p < 0.006) [ 37 ].
Another study conducted across four Swiss institutions proved that a total RT dose of > 56 Gy was a highly significant positive predictive factor of OS (p < 0.006) [ 37 ].