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PubMed:32214286 / 187-200
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok33","span":{"begin":0,"end":6},"obj":"NNP"},{"id":"tok34","span":{"begin":7,"end":13},"obj":"NNPS"},{"id":"lookup3","span":{"begin":0,"end":13},"obj":"location"}],"text":"United States"}