Pulchinenoside B4 ameliorates oral ulcers in rats by modulating gut microbiota and metabolites. - Luo, Dewei; Yan, Li; Wang, Zhujun; Ji, Xiaofan; Pei, Na; Jia, Jing; Luo, Yingying; Ouyang, Hui; Yang, Shilin; Feng, Yulin (Applied Microbiology & Biotechnology, 2024)