研究单位：[1]Respiratory and Critical Care Medicine,Tongji Hospital of Tongji Medical College,Huazhong University of Science and Technology,Tongji Hospital
研究目的：
This center intends to conduct a single-center, randomized, placebo-controlled study to evaluate the effectiveness and safety of Nintedanib ethanesulfonate soft capsule in the treatment of pulmonary fibrosis in patients with moderate to severe COVID-19.
