PMC:7074424 / 9007-9022
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T42","span":{"begin":0,"end":15},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Database screen"}