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. 2020 Oct 16;10:506959. doi: 10.3389/fonc.2020.506959

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Copyright © 2020 Quintero Escobar, Costa, Martins, Costa, vanHelvoort Lengert, Boldrini, Morini da Silva, Lopes, Vidal, Krepischi, Maschietto and Tasic.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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PCA score plots. (A) PCs 2, 3, and 4 of the ¹H-NMR CPMG spectra model. (B) PCs 1, 4, and 7 of the ¹H-NMR WATERGATE spectra model. Patients with osteosarcoma are shown in red circles, and healthy controls are shown in blue diamonds.