PubMed:32154135 / 2000-2003
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T367","span":{"begin":0,"end":3},"obj":"MD"}],"text":"may"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok408","span":{"begin":0,"end":3},"obj":"MD"}],"text":"may"}