PubMed:32087820 / 1244-1253
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T198","span":{"begin":0,"end":9},"obj":"NNS"}],"text":"Countries"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok211","span":{"begin":0,"end":9},"obj":"NNS"}],"text":"Countries"}