Fuzheng Huayu tablets for treating pulmonary fibrosis in post-COVID-19 patients: a multicenter, randomized, double-blind, placebo-controlled trial - Jing, Fei; Wang, Wei; Ke, Jia; Huang, Tingrong; Jiang, Bo; Qiu, Qiwu; Huang, Jihan; Zhan, Songhua; Zhang, Wei; Wu, Hui; Su, Wen; Feng, Jiawen; et al. (Frontiers in Pharmacology, 2025)