PubMed:31995857 / 1640-1642
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T295","span":{"begin":0,"end":2},"obj":"IN"}],"text":"if"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok333","span":{"begin":0,"end":2},"obj":"IN"}],"text":"if"}