PubMed:31986264 / 1056-1057
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T157","span":{"begin":0,"end":1},"obj":"-COLON-"}],"text":":"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok172","span":{"begin":0,"end":1},"obj":":"}],"text":":"}