PMC:7143846 / 14609-14764 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T106","span":{"begin":0,"end":155},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"However, it’s worth noting that the word frequency of positive emotions increased after 20 January, which seemed to be inconsistent with the theory of BIS."}