PubMed:32156607 / 581-587
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T93","span":{"begin":0,"end":6},"obj":"NNS"}],"text":"events"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok97","span":{"begin":0,"end":6},"obj":"NNS"}],"text":"events"}