AUTHOR=Zhou Shilin , Zhou Ting , Zhang Yanmei , Yang Bingqian , Niu Junmei , Li Weixian , Weitu Yiyi , Long Faming , Liu Zhenwen , Zhou Jing TITLE=DNA metabarcoding unveils authenticity and adulteration in commercial Chinese polyherbal preparations: Renshen Jianpi Wan as a critical case study JOURNAL=Frontiers in Pharmacology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1584065 DOI=10.3389/fphar.2025.1584065 ISSN=1663-9812