PMC:7143804 / 53622-53642
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T463","span":{"begin":0,"end":20},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"150 1968 290 2645"}