PMC:7283670 / 95722-95748
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T833","span":{"begin":0,"end":26},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Secondary (up to 28 days):"}