PMC:7738161 / 35317-35422 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T242","span":{"begin":0,"end":105},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Underestimation is therefore complex and is comprised of varying under-ascertainment and under-reporting."}