PubMed:31996494 / 545-553
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T95","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"chemical"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok109","span":{"begin":0,"end":8},"obj":"NN"}],"text":"chemical"}