PubMed:32049687 / 449-451
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T83","span":{"begin":0,"end":2},"obj":"IN"}],"text":"at"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok93","span":{"begin":0,"end":2},"obj":"IN"},{"id":"lookup25","span":{"begin":0,"end":2},"obj":"country_code"}],"text":"at"}