PubMed:32049687 / 389-392
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T69","span":{"begin":0,"end":3},"obj":"NNP"}],"text":"USA"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok75","span":{"begin":0,"end":3},"obj":"NNP"},{"id":"lookup19","span":{"begin":0,"end":3},"obj":"location"}],"text":"USA"}