PubMed:32172226 / 962-970
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T151","span":{"begin":0,"end":8},"obj":"NNS"}],"text":"products"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok171","span":{"begin":0,"end":8},"obj":"NNS"}],"text":"products"}