PubMed:32102777 / 55-59
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T8","span":{"begin":2,"end":4},"obj":"IN"}],"text":"k of"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok10","span":{"begin":2,"end":4},"obj":"IN"}],"text":"k of"}