PMC:7068162 / 920-1047 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T10","span":{"begin":17,"end":29},"obj":"http://purl.obolibrary.org/obo/OBI_0000245"},{"id":"T11","span":{"begin":45,"end":46},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"The World Health Organization (WHO) declared a public health emergency of international concern by the end of January 2020 [3]."}

{"project":"LitCovid-sentences","denotations":[{"id":"T8","span":{"begin":0,"end":127},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The World Health Organization (WHO) declared a public health emergency of international concern by the end of January 2020 [3]."}