PubMed:32077659 / 22-27
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T4","span":{"begin":3,"end":5},"obj":"IN"}],"text":"sm of"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok5","span":{"begin":3,"end":5},"obj":"IN"}],"text":"sm of"}