PubMed:32133152 / 1162-1163
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T178","span":{"begin":0,"end":1},"obj":"NN"}],"text":"R"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok206","span":{"begin":0,"end":1},"obj":"NN"}],"text":"R"}