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APA Citation
Hswen, Y., Brownstein, J. S., Xu, X., & Yom-Tov, E. (2020). early detection of COVID-19 in China and the USA: summary of the implementation of a digital decision-support and disease surveillance tool. BMJ open, 10(12), . http://access.bl.uk/ark:/81055/vdc_100127566769.0x00003e