PMC:7738161 / 33203-33357 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T228","span":{"begin":0,"end":154},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"We have used an observation model to link reported cases to the modelled prevalence, and we included variation in the portion of cases detected over time."}