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PMC:7543325 / 3789-3884
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T29","span":{"begin":85,"end":93},"obj":"http://purl.obolibrary.org/obo/CLO_0001658"}],"text":"nfirmed in our hospital, from 1 March 2020 to 24 April 2020.\nWe defined 3 periods of activity d"}