PMC:7782580 / 60696-60812 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T455","span":{"begin":0,"end":116},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The definitions and details of the five evaluation indicators used in this study were given in Supplementary Note 2."}