PMC:7045882 / 310-472 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":67,"end":77},"obj":"http://purl.obolibrary.org/obo/CLO_0001658"},{"id":"T2","span":{"begin":137,"end":138},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"smission of the disease. However, omissions and errors in previous activities can occur when the investigation is performed through only a proxy interview with th"}