PMC:7116472 / 14450-14563 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T97","span":{"begin":0,"end":113},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"A sensitivity analysis was also performed, with stratification of the validation cohort by geographical location."}