PubMed:32133152 / 2188-2189
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T333","span":{"begin":0,"end":1},"obj":"NN"}],"text":"R"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok390","span":{"begin":0,"end":1},"obj":"NN"}],"text":"R"}