PubMed:32235085 / 69-75
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok13","span":{"begin":2,"end":3},"obj":"."},{"id":"tok14","span":{"begin":4,"end":6},"obj":"CD"}],"text":"rn.\n18"}
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":4,"end":6},"obj":"http://purl.obolibrary.org/obo/CLO_0050510"}],"text":"rn.\n18"}