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Superimposition of two representative 1H NMR spectra (projections of JRES spectra), which show the average signals from the serum samples of healthy subjects (blue line) and patients with disease (red line) after application of a generalized log transformation. Predominant metabolite resonances are labeled on the spectrum. Ala indicates alanine; Gluc, glucose; Lac, lactate; Val, valine.
