PMC:7267243 / 2258-2285
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T25","span":{"begin":0,"end":27},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Age (y) 62 70 54 73 54"}