PubMed:32171193 / 2023-2024 JSONTXT

{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T315","span":{"begin":0,"end":1},"obj":"DT"}],"text":"a"}

{"project":"LitCovid-TimeML","denotations":[{"id":"tok366","span":{"begin":0,"end":1},"obj":"DT"}],"text":"a"}

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T30","span":{"begin":0,"end":1},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"a"}