PMC:7781502 / 5310-5517 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T46","span":{"begin":32,"end":138},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"is, and 171 (0.61%) guidelines. The remaining 6,901 (24.81%) positions were letters to the editors, commentaries, errata, or unclassified. In a per-month analysis we found that in January, two articles (0.00"}