PMC:7795966 / 6624-6663
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T51","span":{"begin":0,"end":39},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Characteristics of the Included Studies"}