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. 2024 Jan 3;14:1230861. doi: 10.3389/fphar.2023.1230861

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Copyright © 2024 Shen, Wu, Chen, Bai, Liu, Jiang, Zhang and Yang.

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 fingerprints of samples. ((A) Fingerprints of different grades of RAS; (B) Standard fingerprint of different grades of RAS. 1: unknown; 2: uridine; 3: adenosine; 4: guanine; 5: tryptophan; 6: unknown; 7: chlorogenic acid; 8: unknown; 9: unknown; 10: unknown; 11: ferulic acid; 12: senkyunolide I; 13: unknown; 14: unknown; 15: unknown; 16: ligustilide; 17: levistolide A).