Effects of chitosan on restoring spermatogenesis in mice: Insights from gut microbiota and multi-omics analysis - Guitian He; Boqi Zhang; Tong Chen; Caomeihui Shen; Nan Wang; Junjun Yang; Fuqiang Chang; Yue Sui; Xuanqi Yin; Yueying Wang; Sihui Wang; Yaqiu Li; et al. (Food Research International, 2025)