PMC:7116472 / 45909-45919
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T309","span":{"begin":0,"end":10},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" 1 + 1"}