PubMed:31967321 / 1396-1398
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T210","span":{"begin":0,"end":2},"obj":"TO"}],"text":"to"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok226","span":{"begin":0,"end":2},"obj":"TO"},{"id":"lookup25","span":{"begin":0,"end":2},"obj":"country_code"}],"text":"to"}