PubMed:32176772 / 84-88
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T14","span":{"begin":3,"end":4},"obj":"-COLON-"}],"text":"UND:"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok16","span":{"begin":3,"end":4},"obj":":"}],"text":"UND:"}