PubMed:32118390 / 1998-2004
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T204","span":{"begin":0,"end":6},"obj":"RB"}],"text":"mainly"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok539","span":{"begin":0,"end":6},"obj":"RB"}],"text":"mainly"}