PMC:7212965 / 1175-1330 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T13","span":{"begin":83,"end":84},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"Development and Evaluation) framework.\n\nResults\nWe identified 118 studies and used a hierarchal study selection process to identify unique cohorts. We perf"}

{"project":"LitCovid-sentences","denotations":[{"id":"T9","span":{"begin":40,"end":47},"obj":"Sentence"},{"id":"T10","span":{"begin":48,"end":147},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Development and Evaluation) framework.\n\nResults\nWe identified 118 studies and used a hierarchal study selection process to identify unique cohorts. We perf"}