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Zhou Y, Jiang H, Wang Q, Yang M, et al. Use of contact tracing, isolation, and mass testing to control transmission of
covid-19 in China. BMJ 2021;375:n2330.
PMID: 34853002
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 |
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Zhou Y, Jiang H, Wang Q, Yang M, et al. Use of contact tracing, isolation, and mass testing to control transmission of
covid-19 in China. BMJ 2021;375:n2330.
PMID: 34853002
|
|
|
|