PMC:7078825 / 722-847 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T3","span":{"begin":9,"end":10},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T4","span":{"begin":53,"end":54},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"China in a matter of days [1,2]. It was announced as a public health emergency of international concern by the World Health O"}