PubMed:32105632 / 166-168
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T25","span":{"begin":0,"end":2},"obj":"DT"}],"text":"An"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok28","span":{"begin":0,"end":2},"obj":"DT"}],"text":"An"}