PubMed:32167524 / 235-240
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T36","span":{"begin":0,"end":5},"obj":"RB"}],"text":"first"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok39","span":{"begin":0,"end":5},"obj":"RB"},{"id":"lookup11","span":{"begin":0,"end":5},"obj":"date"}],"text":"first"}