PubMed:32227494 / 0-21
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok1","span":{"begin":0,"end":7},"obj":"NN"},{"id":"tok2","span":{"begin":8,"end":14},"obj":"MD"},{"id":"tok3","span":{"begin":15,"end":17},"obj":"VB"},{"id":"lookup1","span":{"begin":15,"end":17},"obj":"country_code"}],"text":"Caution should be exe"}