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. 2017 Nov 30;8:876. doi: 10.3389/fphar.2017.00876

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Copyright © 2017 Zhou, Tang, Xiong, Dong, Huang, Zhou, Zhang, Qin and Yan.

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) or licensor 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 PC granule from three batches and reference standards. There were three batches of PC granule supplied by Sanjiu Medical and Pharmaceutical Co. Ltd. (lot: 1407001W, 1601002S, and 1601003S). (A) Standard with Psoralea; (B) Standard with Isopsoralen; (C–E) Three batches of PC granules samples.