PMC:7014672 / 11416-11510 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T113","span":{"begin":0,"end":94},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The numbers are too small to detect systematic differences in incubation time with age or sex."}