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FIG 1. Axial T1-weighted image shows the location of the 2 x 2 x 2-cm voxel in the region of the left thalamus and the corresponding location of the right thalamus. MR spectroscopic data were separately acquired from each voxel for the three groups: SCI patients with pain, SCI patients without pain, and healthy control subjects.
FIG 2. Typical single-voxel stimulated echo acquisition mode spectrum from a healthy control subject. The assignment of peaks to various cerebral metabolites and the spectral analysis are described in Methods.
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