PMC:7103724 / 1518-1619 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T19","span":{"begin":87,"end":99},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"process, it is difficult to recognize early for pediatrician and public health staff.\n\nIntroduction\nI"}