PubMed:32164424 / 1615-1617
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T237","span":{"begin":0,"end":2},"obj":"IN"}],"text":"of"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok270","span":{"begin":0,"end":2},"obj":"IN"}],"text":"of"}