PubMed:32019667 / 405-411
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T70","span":{"begin":0,"end":6},"obj":"NNP"}],"text":"United"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok80","span":{"begin":0,"end":6},"obj":"NNP"}],"text":"United"}