PMC:7454539 / 6253-6289
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T57","span":{"begin":0,"end":36},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Conflict of interest: none declared."}