Summary of sociodemographics for a subset of children scanned.

<p>Summary of sociodemographics for a subset of children scanned.</p

Characteristics of children.

<p>Characteristics of children.</p

Summary of linear mixed effects (LME) model of metabolite levels with age.

<p>Summary of linear mixed effects (LME) model of metabolite levels with age.</p

Images of voxel placement.

<p>Sagittal, coronal, and axial views are shown from left to right. Location of (a) midfrontal gray matter voxel, (b) basal ganglia voxel, and (c) peritrigonal white matter voxel.</p