PubMed:32154135 / 1071-1078
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T186","span":{"begin":0,"end":7},"obj":"NNS"}],"text":"mothers"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok206","span":{"begin":0,"end":7},"obj":"NNS"}],"text":"mothers"}