PubMed:32031570 / 1181-1184
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T184","span":{"begin":0,"end":3},"obj":"CD"}],"text":"138"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok198","span":{"begin":0,"end":3},"obj":"CD"}],"text":"138"}