PMC:7441788 / 25373-25580 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7441788","sourcedb":"PMC","sourceid":"7441788","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7441788","text":"It is worth noting that in the study’s propensity score model, four possible important prognostic variables were unbalanced and a center effect was not considered, which all can cause bias for study results.","tracks":[{"project":"LitCovid-PD-CLO","denotations":[{"id":"T208","span":{"begin":128,"end":129},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"attributes":[{"subj":"T208","pred":"source","obj":"LitCovid-PD-CLO"}]},{"project":"LitCovid-sample-sentences","denotations":[{"id":"T184","span":{"begin":0,"end":207},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"attributes":[{"subj":"T184","pred":"source","obj":"LitCovid-sample-sentences"}]},{"project":"LitCovid-sentences","denotations":[{"id":"T184","span":{"begin":0,"end":207},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"attributes":[{"subj":"T184","pred":"source","obj":"LitCovid-sentences"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"LitCovid-PD-CLO","color":"#e393ec","default":true},{"id":"LitCovid-sample-sentences","color":"#93ecc9"},{"id":"LitCovid-sentences","color":"#ecaf93"}]}]}}