PubMed:32057210 / 13-25
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T3","span":{"begin":3,"end":6},"obj":"CC"}],"text":"on and contr"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok4","span":{"begin":3,"end":6},"obj":"CC"}],"text":"on and contr"}