PubMed:32110742 / 2203-2207
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T247","span":{"begin":0,"end":4},"obj":"DT"}],"text":"both"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok384","span":{"begin":0,"end":4},"obj":"DT"}],"text":"both"}