PubMed:32145714 / 876-887
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T158","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"differences"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok188","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"differences"}