PubMed:32102777 / 991-1002
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T159","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"literatures"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok184","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"literatures"}