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. 2021 Dec 17;12:807081. doi: 10.3389/fphar.2021.807081

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Copyright © 2021 Pandeya, Lamichhane, Lamichhane, Lee, Lee, Rhee and Jung.

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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UPLC chromatogram of standards, individual botanical drug ingredients, and 18KHT01 at 210 nm (blue) and 254 nm (red). The marker compounds are (A) caffeine (B) epicatechin (C) corilagin (D) EGCG (E) ECG; and (F) ellagic acid.