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. 2012 Aug 10;7(8):e42926. doi: 10.1371/journal.pone.0042926

Figure 2. 2×2×4 cm voxel MRS acquired at 144 ms from placenta from healthy participant 1.

Figure 2

In this case, choline and lipid spectral peak demonstrated at frequencies of 3.21 ppm, and 1.3 ppm and 0.9 ppm per million (ppm) respectively.