PMC:7463108 / 54431-54443
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T762","span":{"begin":0,"end":12},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"2017, 2019)."}
2_test
{"project":"2_test","denotations":[{"id":"32876803-28057474-62958113","span":{"begin":0,"end":4},"obj":"28057474"}],"text":"2017, 2019)."}