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. 2019 Nov 21;10:1354. doi: 10.3389/fphar.2019.01354

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Copyright © 2019 Yuan, Yang, Zhang, Ji, Hua and Wei

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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HPLC chromatogram of 13 active ingredients in HLJDD. (A) Mixed standards, (B) HLJDD sample. Compounds: phellodendrine (1), chlorogenic acid (2), magnoflorine (3), geniposide (4), coptisine (5), epiberberine (6), jatrorrhizine (7), berberine (8), palmatine (9), baicalin (10), wogonoside (11), wogonin (12), oroxylin A (13).