<p>Individual peak area MRS ratios using a single voxel encompassing supratentorial deep grey matter and central WM in protectively ventilated (PROT; open circles) and injuriously ventilated (INJ; black squares) preterm lambs. LAC; lactate, Cr; creatine, NAA; N-acetylaspartate, Cho; choline. Compared to the PROT group, MRS peak-area ratios of lactate to other metabolites (Cr, NAA, Cho) were more scattered in INJ lambs.</p