PubMed:32064855 / 782-789
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T151","span":{"begin":0,"end":7},"obj":"NN"}],"text":"contact"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok157","span":{"begin":0,"end":7},"obj":"NN"}],"text":"contact"}