HARTVEIT and female series separately when their difference is significant, with the number of mice used, the S.E., t and P values for the difference. The difference in survival time of the mice in groups I and II, total series (1.21 days) is not statistically significant In groups I and III this difference (1 day) is not significant for the male mice, but the difference for the female mice in these groups (6.67 days) is highly significant (0.001 > P).
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