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Overall study workflow. DR, restricted fraction; DTI, diffusion tensor imaging; FA, fractional anisotropy; FR123, Restricted fraction while choosing the number of fibers in each voxel between one and three according to Akaike's information criterion; MD, mean diffusivity; MRI, magnetic resonance imaging; RD, radial diffusivity; TBSS, tract‐based spatial statistics. In addition to the indices depicted, mean kurtosis (MK) and radial kurtosis (RK) were also calculated.
