PMC:7068163 / 590-728 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T3","span":{"begin":122,"end":123},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"h different PCR systems varied and the commercial kit performed well.\n\nAt the end of December 2019, an outbreak caused by a novel coronavi"}