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The AD, RD, and FA values for each subject are plotted separately at each time point. In each plot, the slope is displayed as a solid line, the full model is displayed as a solid curved line, and the dotted line marks the intercept of the model at time point 0. The mean values across all subjects are displayed as red crosses. The data is modeled according to Equation 1 (see Materials and Methods). FA = fractional anisotropy; AD = axial diffusivity; RD = radial diffusivity.
