AUTHOR=Guo Kangxiao , Tang Yuan , Yang Tao , Yan Yongwang TITLE=Massa Medicata Fermentata treated spleen deficiency constipation by mediating intestinal microbiota and serum peptide JOURNAL=Frontiers in Cellular and Infection Microbiology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/cellular-and-infection-microbiology/articles/10.3389/fcimb.2025.1556915 DOI=10.3389/fcimb.2025.1556915 ISSN=2235-2988