PubMed:32238182 / 296-305
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok61","span":{"begin":0,"end":9},"obj":"NN"}],"text":"objective"}
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T5","span":{"begin":0,"end":9},"obj":"http://purl.obolibrary.org/obo/BFO_0000030"}],"text":"objective"}