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Representative proton magnetic resonance spectra obtained from the left hippocampus using the MEGA-PRESS and PRESS techniques. Cho, choline; Cr, creatine; GABA, gamma-aminobutyric acid; Gln, glutamine; Glu, glutamate; GLX, glutamine-glutamate complex; MEGA-PRESS, Mescher-Garwood Point Resolved Spectroscopy sequence; MM, macromolecular; NAA, N-acetylaspartate.
