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PMC:7435837 / 85-124
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":18,"end":26},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"virus Infections\n\nAbstract\nIn 2020, the"}