PubMed:32027573 / 488-493
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T69","span":{"begin":0,"end":5},"obj":"NN"}],"text":"chain"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok85","span":{"begin":0,"end":5},"obj":"NN"}],"text":"chain"}