PubMed:31996494 / 522-528
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T90","span":{"begin":0,"end":6},"obj":"NNS"}],"text":"assays"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok104","span":{"begin":0,"end":6},"obj":"NNS"}],"text":"assays"}