PubMed:32118640 / 3580-3587
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T621","span":{"begin":0,"end":7},"obj":"NN"}],"text":"smoking"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok871","span":{"begin":0,"end":7},"obj":"NN"}],"text":"smoking"}