PubMed:32026671 / 1994-2000
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T344","span":{"begin":0,"end":6},"obj":"NN"}],"text":"shadow"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok376","span":{"begin":0,"end":6},"obj":"NN"}],"text":"shadow"}