PubMed:32149769 / 1309-1314
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T189","span":{"begin":0,"end":5},"obj":"NN"}],"text":"chain"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok241","span":{"begin":0,"end":5},"obj":"NN"}],"text":"chain"}