PubMed:32134681 / 3456-3458
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T653","span":{"begin":0,"end":2},"obj":"DT"}],"text":"an"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok761","span":{"begin":0,"end":2},"obj":"DT"},{"id":"lookup83","span":{"begin":0,"end":2},"obj":"country_code"}],"text":"an"}