PMC:7558333 / 27396-27417
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T233","span":{"begin":0,"end":21},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Positive PCR 2 1 3"}