PMC:1447668 / 13774-13852 JSONTXT

{"project":"sentences","denotations":[{"id":"T73","span":{"begin":0,"end":78},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Relative luciferase activity was normalized to the internal reference control."}