PubMed:32171193 / 1244-1246
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T196","span":{"begin":0,"end":2},"obj":"IN"}],"text":"by"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok226","span":{"begin":0,"end":2},"obj":"IN"},{"id":"lookup29","span":{"begin":0,"end":2},"obj":"country_code"}],"text":"by"}