Per the LCModel Manual, each metabolite level was normed to the water reference and corrected for voxel CSF-content using the following equation: $$M_{{\mathrm {corr}}} = M\frac{{35,880{{{\mathrm{WM}}} + 43,300{{{\mathrm{GM}}} + 55,556{{{\mathrm{CSF}}}{{35,880(1 - {{...