PubMed:32145714 / 134-143
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T24","span":{"begin":0,"end":9},"obj":"NN"}],"text":"pregnancy"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok28","span":{"begin":0,"end":9},"obj":"NN"}],"text":"pregnancy"}