Yang X, Tian R, Shi C, Wang A. The Potential Effectiveness of an Ancient Chinese Herbal Formula Yupingfengsan for the Prevention of COVID-19: A Systematic Review. MEDIN [Internet]. 2024 Oct. 28 [cited 2025 Apr. 19];2(1):1–10. Available from: https://ojs.bonviewpress.com/index.php/MEDIN/article/view/3831