PMC:7294857 / 6488-6620 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T57","span":{"begin":0,"end":132},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"After applying the inclusion-exclusion criteria and removing the duplications, we finally got twenty-nine papers that were reviewed."}