PubMed:32052466 / 849-852
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T131","span":{"begin":0,"end":3},"obj":"IN"}],"text":"for"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok139","span":{"begin":0,"end":3},"obj":"IN"}],"text":"for"}