PubMed:32150618 / 109-114
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T15","span":{"begin":1,"end":3},"obj":"IN"}],"text":" of S"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok16","span":{"begin":1,"end":3},"obj":"IN"}],"text":" of S"}