PMC:7078825 / 2082-2201
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T11","span":{"begin":71,"end":73},"obj":"http://purl.obolibrary.org/obo/CLO_0053733"}],"text":"but no RT-PCR results. The study period was set between 16 January and 11 February 2020, because the diagnosis criteria"}