PubMed:32133152 / 239-243
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T39","span":{"begin":0,"end":4},"obj":"CD"}],"text":"2019"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok46","span":{"begin":0,"end":4},"obj":"CD"},{"id":"lookup15","span":{"begin":0,"end":4},"obj":"year"}],"text":"2019"}