PubMed:32238182 / 83-92
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok18","span":{"begin":0,"end":9},"obj":"NNP"}],"text":"OBJECTIVE"}
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T2","span":{"begin":0,"end":9},"obj":"http://purl.obolibrary.org/obo/BFO_0000030"}],"text":"OBJECTIVE"}