PMC:7358770 / 39336-39386
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T245","span":{"begin":0,"end":50},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The authors have declared no conflict of interest."}