PubMed:32145714 / 1839-1847
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T325","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"maternal"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok387","span":{"begin":0,"end":8},"obj":"NN"}],"text":"maternal"}