PMC:7555630 / 4989-5158 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T30","span":{"begin":0,"end":169},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"We then conducted telephone interviews and reviewed medical charts from the hospital electronic health record systems (EHRs) to obtain all pertinent data for this paper."}