PubMed:32052466 / 248-252
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T39","span":{"begin":0,"end":4},"obj":"DT"}],"text":"this"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok45","span":{"begin":0,"end":4},"obj":"DT"},{"id":"lookup5","span":{"begin":0,"end":4},"obj":"time_modifier"}],"text":"this"}