human 218 Humans 162 Article 155 male 136 controlled study 133 female 131 adult 124 diagnostic imaging 100 diffusion tensor imaging 86 Diffusion 83 Male 82 Female 81 diffusion 72 white matter 71 nuclear magnetic resonance imaging 69 Diffusion Tensor Imaging 68 Adult 67 article 66 diffusion weighted imaging 65 major clinical study 61 middle aged 56 pathology 55 aged 52 White Matter 50 procedures 49 neuroimaging 47 clinical article 46 fractional anisotropy 46 Middle Aged 45 nonhuman 39