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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/).
(A): Representative members of new xanthone phytochemicals from various plant sources (compounds 24 to 35). (B): Representative members of new xanthone phytochemicals from various plant sources (compounds 36 to 42).