PubMed:32026671 / 877-881
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T143","span":{"begin":0,"end":4},"obj":"DT"}],"text":"each"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok153","span":{"begin":0,"end":4},"obj":"DT"}],"text":"each"}