PubMed:31967321 / 90-95
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T11","span":{"begin":1,"end":4},"obj":"MD"}],"text":" may "}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok12","span":{"begin":1,"end":4},"obj":"MD"}],"text":" may "}