PMC:7371427 / 117-133
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":4,"end":12},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"rs\n\nAbstract\nThe"}