PMC:7281378 / 7428-7655 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T54","span":{"begin":35,"end":219},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"eview Protocol and Search Strategy\nThe guidelines and the procedures as detailed by the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) [50] were followed for drafting this systematic review. Origina"}