PMC:7536914 / 0-42
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T1","span":{"begin":0,"end":37},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Necessity is the mother of invention: Rapi"}