PMC:7696151 / 100919-101084 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T687","span":{"begin":0,"end":165},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The preclinical and clinical studies have been classified as being of high (red section), medium (yellow section), and low risk (green section) of bias; n° = number."}