Citrus depressa modulates endogenous aromatic amino acids to regulate the kynurenine pathway and ameliorate bleomycin-induced pulmonary fibrosis. - Liu TW; Zhuang XY; Chu MH; Wang YH; Hsieh YSY; Hsu SJ; Iskandar B; Lin SM; Wu HH; Lee CK (Journal of ethnopharmacology, 2026)