PubMed:32087623 / 718-729
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T113","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"differences"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok120","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"differences"}