PMC:7473770 / 36863-36899
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T293","span":{"begin":0,"end":36},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Total exposure ≃ 63 m i n ≃ 75 s"}