PubMed:32167153 / 388-392
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T66","span":{"begin":0,"end":4},"obj":"CD"}],"text":"2003"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok71","span":{"begin":0,"end":4},"obj":"CD"},{"id":"lookup19","span":{"begin":0,"end":4},"obj":"year"}],"text":"2003"}