PubMed:32077659 / 2178-2180
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T348","span":{"begin":0,"end":2},"obj":"IN"}],"text":"by"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok372","span":{"begin":0,"end":2},"obj":"IN"},{"id":"lookup38","span":{"begin":0,"end":2},"obj":"country_code"}],"text":"by"}