PubMed:32149773 / 1078-1080
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T164","span":{"begin":0,"end":2},"obj":"DT"}],"text":"an"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok179","span":{"begin":0,"end":2},"obj":"DT"},{"id":"lookup27","span":{"begin":0,"end":2},"obj":"country_code"}],"text":"an"}