PMC:7784786 / 12851-13000 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T115","span":{"begin":0,"end":149},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"For intra-assay precision (precision within an assay), three samples of known concentration were tested on one plate to assess intra-assay precision."}