PMC:7283670 / 31879-31882
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T247","span":{"begin":0,"end":3},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"80:"}