PMC:7796344 / 23537-23661 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T163","span":{"begin":0,"end":124},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"There are a number of biases that are present in this study, including the self-reporting and recall biases of participants."}