PubMed:32239784 / 753-758 JSONTXT

Annnotations TAB JSON ListView MergeView

    LitCovid-TimeML

    {"project":"LitCovid-TimeML","denotations":[{"id":"tok151","span":{"begin":0,"end":5},"obj":"NNS"},{"id":"lookup23","span":{"begin":0,"end":5},"obj":"date_unit"}],"text":"years"}