PubMed:32077659 / 672-674
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T104","span":{"begin":0,"end":2},"obj":"IN"}],"text":"at"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok112","span":{"begin":0,"end":2},"obj":"IN"},{"id":"lookup10","span":{"begin":0,"end":2},"obj":"country_code"}],"text":"at"}