AUTHOR=Liang Xuejuan , Wan Dan , Li Xinliang , Peng Yanmei , Chen Linglong TITLE=Study on the effects of Massa Medicata Fermentata with different formulations on the intestinal microbiota and enzyme activities in mice with spleen deficiency constipation JOURNAL=Frontiers in Cellular and Infection Microbiology VOLUME=14 YEAR=2025 URL=https://www.frontiersin.org/journals/cellular-and-infection-microbiology/articles/10.3389/fcimb.2024.1524327 DOI=10.3389/fcimb.2024.1524327 ISSN=2235-2988