PubMed:32172546 / 1781-1790
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T270","span":{"begin":0,"end":9},"obj":"NNS"}],"text":"particles"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok299","span":{"begin":0,"end":9},"obj":"NNS"}],"text":"particles"}