PMC:7787218 / 19981-20080 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T94","span":{"begin":55,"end":99},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Phase information was current as of December 21, 2020. In all cases, the placebo was normal saline."}