PMC:7116472 / 45974-45988
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T313","span":{"begin":0,"end":14},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" 20-29 + 1"}