PMC:7795966 / 35247-35314
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T259","span":{"begin":0,"end":67},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Preferred Reporting Items for Systematic Reviews and Meta-Analyses."}