PMC:7461420 / 90225-90241
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T784","span":{"begin":3,"end":6},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"). 237\nIn 2014, "}