PubMed:31996494 / 1280-1291
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T213","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"experiments"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok235","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"experiments"}