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Representative 1D 1H Carr–Purcell–Meiboom–Gill (CPMG) high-resolution 1H magic angle spinning (HR-MAS) spectra between 4.8 and 0.7 ppm of healthy (a), AK I (b), AK II (c), AK III (d) and (e) SCC are reported. Major metabolites are labelled. Acetate (Ac), alanine (Ala), ascorbate (Asc), creatine (Cr), glutamate (Glu), β-glucose (β-Glc), lactate (Lac), lipids (Lip), N-acetyl (N-Ac), serine (Ser), taurine (Tau), valine (Val).
