PMC:7272971 / 27544-27734 JSONTXT

{"project":"LitCovid-PD-GO-BP","denotations":[{"id":"T11","span":{"begin":178,"end":189},"obj":"http://purl.obolibrary.org/obo/GO_0009056"}],"text":"As is acknowledged by Xia et al., 76 PCR can yield false positive and false negative data: false positive data due to sample contamination and false negative data due to sample degradation."}

{"project":"LitCovid-sentences","denotations":[{"id":"T186","span":{"begin":0,"end":190},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"As is acknowledged by Xia et al., 76 PCR can yield false positive and false negative data: false positive data due to sample contamination and false negative data due to sample degradation."}