PubMed:32060789 / 248-253
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T42","span":{"begin":0,"end":5},"obj":"JJ"}],"text":"first"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok44","span":{"begin":0,"end":5},"obj":"JJ"},{"id":"lookup13","span":{"begin":0,"end":5},"obj":"date"}],"text":"first"}