PubMed:32026671 / 139-145
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T22","span":{"begin":1,"end":5},"obj":"CD"}],"text":" 2019 "}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok24","span":{"begin":1,"end":5},"obj":"CD"},{"id":"lookup2","span":{"begin":1,"end":5},"obj":"year"}],"text":" 2019 "}