R. Theodora, H. Hendsun, Y. Firmansyah, E. Destra, and D. Gosal, “PERIODIC Q-PCR OR CHEST X RAY – WHICH IS MORE IMPORTANT FOR MONITORING POST COVID-19 INFECTION CASE? (CASE REPORT STUDY)”, JMH, vol. 3, no. 01 Oktober, pp. 1626-1632, Oct. 2021.