DingkunDɑn ameliorates ovarian fibrosis and restores ovulation in a DHEA-induced PCOS rat model via inhibition of the TGF-β/Smad signaling pathway - Lan Chen; Dijun Wang; Jiali Cai; Li Zhu; Xiaojing Yan; Yuanpei Lian; Shikang Zhou; Chunyan Yin; Ji Cao; Xueke Nie; Jiming Chen (Tissue and Cell, 2026)