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[Preprint]. 2023 Jun 15:2023.02.10.528046. [Version 3] doi: 10.1101/2023.02.10.528046

Figure 2:

Figure 2:

Brain metabolite concentrations in younger (18–45 years, in blue) and older (>50 years, in white) healthy adults from studies that reported results as: (A) Molar, molal, and Institutional Units; (B) Creatine-referenced. An * indicates the use of a Fixed Effects Model rather than a Random Effects Model. A † indicates a combined effects model was not defined.