PubMed:31996494 / 239-241
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T47","span":{"begin":0,"end":2},"obj":"DT"}],"text":"no"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok58","span":{"begin":0,"end":2},"obj":"DT"},{"id":"lookup11","span":{"begin":0,"end":2},"obj":"country_code"}],"text":"no"}