PMC:7104236 / 4276-4313
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T34","span":{"begin":0,"end":37},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"2.2 Inclusion and exclusion criteria"}