PubMed:32118640 / 82-90
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T11","span":{"begin":1,"end":5},"obj":"CD"}],"text":" 2019 no"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok12","span":{"begin":1,"end":5},"obj":"CD"},{"id":"lookup2","span":{"begin":1,"end":5},"obj":"year"}],"text":" 2019 no"}