PMC:7781431 / 8286-8293
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T62","span":{"begin":0,"end":7},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"2012b)."}