PMC:7281378 / 10012-10147 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T70","span":{"begin":26,"end":101},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"on and Exclusion Criteria\nThe following criteria were applied for screening of the eligible articles:\nThe original research articles an"}