PMC:7058650 / 2743-2844 JSONTXT

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{"project":"LitCovid-sentences","denotations":[{"id":"T15","span":{"begin":2,"end":14},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"\n\nIntroduction\nOn 31 December 2019, local hospitals in Wuhan, China reported that they had detected a"}