Fig. 1

Representative 500 MHz ¹H CPMG NMR spectra of serum samples from pancreatic cancer mice induced by the different differentiated cells. The spectral regions of δ5.5-9.0 (in the dashed box) were magnified 20 times compared with the regions of δ0.0-5.5 for the purpose of clarity. The abbreviations for peak assignments were noted in Table 1