PubMed:32053389 / 196-209
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok37","span":{"begin":0,"end":6},"obj":"NNP"},{"id":"tok38","span":{"begin":7,"end":13},"obj":"NNPS"},{"id":"lookup4","span":{"begin":0,"end":13},"obj":"location"}],"text":"United States"}