PMC:7212965 / 14126-14236 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T91","span":{"begin":36,"end":38},"obj":"http://purl.obolibrary.org/obo/CLO_0050510"}],"text":"large or very small prevalence.17 , 18 The I 2 statistic was used to measure heterogeneity.19 To explore heter"}

{"project":"2_test","denotations":[{"id":"32407808-23963506-43469243","span":{"begin":31,"end":33},"obj":"23963506"},{"id":"32407808-12958120-43469244","span":{"begin":91,"end":93},"obj":"12958120"}],"text":"large or very small prevalence.17 , 18 The I 2 statistic was used to measure heterogeneity.19 To explore heter"}