PubMed:32077659 / 361-362
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T57","span":{"begin":0,"end":1},"obj":"POS"}],"text":"'"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok60","span":{"begin":0,"end":1},"obj":"POS"}],"text":"'"}