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Time effects. ATE and 95% confidence intervals for 3-d treatment (solid circle) and 10-d treatment (open circle). P values from top to bottom generated from a two-tailed test against the Null Hypothesis of no difference in effect between the 3-d and 10-d treatments are P = 0.195, 0.094, and 0.305. n = 55 for 3-d dose and 54 for 10-d dose. Confidence intervals are constructed by drawing the 2.5% and 97.5% quantiles from the randomization distribution.
