PubMed:32108351 / 1351-1356
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T226","span":{"begin":0,"end":5},"obj":"VBP"}],"text":"occur"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok266","span":{"begin":0,"end":5},"obj":"VBP"},{"id":"event5","span":{"begin":0,"end":5},"obj":"OCCURRENCE"}],"text":"occur"}