PubMed:32234127 / 65-74
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok12","span":{"begin":0,"end":9},"obj":"NNP"}],"text":"Objective"}
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":0,"end":9},"obj":"http://purl.obolibrary.org/obo/BFO_0000030"}],"text":"Objective"}