Fig. 2From: The impact of COVID-19 on the number of active small primary care businesses by severity of the pandemic: evidence from South KoreaNumber of primary care institutions categorized into three areas from 2019 1Q to 2021 1Q on a quarterly basis. Note: Black, blue, and red curve indicates the number of institutions in the metropolitan area, the remaining area, and the most affected area, respectivelyBack to article page