PubMed:32106216 / 1537-1544
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T140","span":{"begin":0,"end":7},"obj":"NNS"}],"text":"systems"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok288","span":{"begin":0,"end":7},"obj":"NNS"}],"text":"systems"}