highly significantP = 1.5 × 10 −9
The distributions of survival times of all Mss1 and all Mss7 rats, respectively, showed highly significant differences to the Kaplan-Meier curve of BDIX rats as judged from the log rank test ( P = 1.5 × 10 −9 and 2.8 × 10 −6 , respectively; see Figure 2A ).