highly significantP = 1.42 × 10 − 7
4 ) revealed a highly significant separation of the three survival curves for locoregional recurrence-free survival ( P = 1.42 × 10 − 7 ).
4 ) revealed a highly significant separation of the three survival curves for locoregional recurrence-free survival ( P = 1.42 × 10 − 7 ).