PMC:7116472 / 9693-9824 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T62","span":{"begin":0,"end":131},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Ten sets, each with 10 iterations, were imputed using available explanatory variables for both cohorts (derivation and validation)."}