. 2020 Oct 30;7:564250. doi: 10.3389/fmed.2020.564250
Copyright © 2020 Zhu, Zhang, Jia, Wang, Chen, Xia, Wang, Wang, Wen, Wang, Zhang, Xu, Zhao and Jiang.
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Figure 4.
Newly increased COVID-19 cases (local cases vs. imported cases) per day in northwestern China.