PubMed:32026671 / 1772-1780
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T306","span":{"begin":0,"end":8},"obj":"NN"}],"text":"changes."}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok336","span":{"begin":0,"end":7},"obj":"NNS"},{"id":"tok337","span":{"begin":7,"end":8},"obj":"."}],"text":"changes."}