PMC:6988269 / 14007-14133 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T121","span":{"begin":0,"end":126},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Replicate reactions were done at concentrations around the detection end point determined in preliminary dilution experiments."}