PubMed:32167153 / 537-542
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T92","span":{"begin":0,"end":5},"obj":"NN"}],"text":"spike"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok100","span":{"begin":0,"end":5},"obj":"NN"}],"text":"spike"}