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. 2020 Oct 29;20:1040. doi: 10.1186/s12885-020-07544-3

Fig. 1.

Fig. 1

Daily numbers of coronavirus disease (COVID-19) cases in South Korea and weekly number of patients in the pulmonary outpatient clinics department (OPD) of study hospitals. *p < 0.001, †National infectious disease alert (from Level 2 to Level 3), ‡WHO announced COVID-19 is a pandemic