PMC:7574920 / 28544-28648 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T254","span":{"begin":51,"end":52},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T255","span":{"begin":90,"end":91},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"We found that some positive samples did not induce a color change but did so when assayed a second time."}

{"project":"LitCovid-sentences","denotations":[{"id":"T206","span":{"begin":0,"end":104},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"We found that some positive samples did not induce a color change but did so when assayed a second time."}