PMC:7294857 / 5448-5549 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T44","span":{"begin":0,"end":101},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"We used Pubmed and Google Scholar as our primary database research engines to find the relevant data."}