In order to understand the role of traditional Chinese medicine(TCM)in the treatment of patients with coronavirus disease 2019(COVID-19),all discharged patients in Hunan Province before February 25,2020 were selected to analyze the effects of different types of TCM participation methods on the improvement of patients'symptoms,the relationship between the participation rate of TCM and hospitalization days and clinical outcome,and the guiding significance of TCM diagnosis and treatment plan and TCM experts in cities and prefectures.The analysis f...