The Author's Response: Case of the Index Patient Who Caused Tertiary Transmission of Coronavirus Disease 2019 in Korea: the Application of Lopinavir/Ritonavir for the Treatment of COVID-19 Pneumonia Monitored by Quantitative RT-PCR. - Lim J; Jeon S; Shin HY; Kim MJ; Seong YM; Lee WJ; Choe KW; Kang YM; Lee B; Park SJ (Journal of Korean medical science, 2020)