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![Hyperpolarized [5-13C,4,4-2H2,5-15N]-L-glutamine provides a means of annotating in vivo metabolic utilization of glutamine](https://www.pnas.org/cms/10.1073/pnas.2120595119/asset/05dc09bc-81dd-4a6b-9564-2534eee7ab4f/assets/images/large/pnas.2120595119fig01.jpg)








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