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Lee, Hyun Woo, Seo-Young Yoon, Jung-Kyu Lee, Tae Yeon Park, Deog Kyeom Kim, Hee Soon Chung, and Eun Young Heo. "Clinical Implication and Risk Factor of Pneumonia Development in Mild Coronavirus Disease 2019 Patients." Korean J Intern Med 2021.

Lee, Hyun Woo, et al. "Clinical Implication and Risk Factor of Pneumonia Development in Mild Coronavirus Disease 2019 Patients." Korean J Intern Med 2021.