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Fig 4. Proton MR spectra from the region of the dentate nucleus of a control subject (A) and a patient with A-T (B) and from the parieto-occipital white matter of a control subject (C) and a patient with A-T (D). The major metabolite peaks are labeled and correspond to cholines (Cho) at 3.2 ppm, creatines (Cr) at 3.0 ppm, and N-acetylaspartate (NAA) at 2.02 ppm. The increase in the Cho peak is marked with an arrow.
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