PubMed:32060789 / 1062-1068
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T172","span":{"begin":0,"end":6},"obj":"NN"}],"text":"heptad"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok189","span":{"begin":0,"end":6},"obj":"NN"}],"text":"heptad"}