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. 2022 Aug 2;12(8):590. doi: 10.3390/bios12080590

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© 2022 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 (https://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

A flow-diagram of the SERS-based method for detecting COVID-positive patients utilizing volatile organic molecules in their breath (BVOCs). Reproduced with permission from ref. [131]. Copyright 2022 American Chemical Society.