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Risk assessment and classification of surgical patients
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* According to the development of the epidemic situation, the risk areas involved in the epidemiological history in Table 1 should be adjusted in time according to the risk areas publicly disclosed by government departments or WHO.
† Level-Ⅰ, basic-level prevention and control measures; Level-Ⅱ, enhanced-level prevention and control measures; Level-Ⅲ, strict-level prevention and control measures.
