Protocol for Prevention and Control of COVID-19 (Edition 6)

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National Health Commission of the People’s Republic of China. Protocol for prevention and control of COVID-19 (Edition 6). http://www.nhc.gov.cn/jkj/s3577/202003/4856d5b0458141fa9f376853224d41d7.shtml. [2020-3-7]. (In Chinese). http://www.nhc.gov.cn/jkj/s3577/202003/4856d5b0458141fa9f376853224d41d7.shtml