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. 2019 Nov 5;20(21):5509. doi: 10.3390/ijms20215509

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Hyperpolarized ¹³C-pyruvate MRI with cold exposure in a mouse. Hyperpolarized ¹³C-pyruvate MRI shows increased BAT activity in a mouse after cold exposure (solid arrow). The dashed arrows show the heart and large vessels and dotted arrow is a phantom. Image reproduced with permission from reference 92.