PubMed:32006657 / 19-23
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T4","span":{"begin":1,"end":3},"obj":"TO"}],"text":" to "}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok5","span":{"begin":1,"end":3},"obj":"TO"},{"id":"lookup2","span":{"begin":1,"end":3},"obj":"country_code"}],"text":" to "}