PubMed:32052466 / 899-907
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T139","span":{"begin":0,"end":8},"obj":"NN"}],"text":"addition"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok148","span":{"begin":0,"end":8},"obj":"NN"}],"text":"addition"}