PMC:7212965 / 17567-18002 JSONTXT

{"project":"LitCovid-PD-MONDO","denotations":[{"id":"T66","span":{"begin":277,"end":285},"obj":"Disease"}],"attributes":[{"id":"A66","pred":"mondo_id","subj":"T66","obj":"http://purl.obolibrary.org/obo/MONDO_0100096"}],"text":"risk of bias (ie, selection bias, detection bias, and attrition bias), heterogeneity of the tested patient populations (inconsistency), as well as issues of indirectness (the majority of studies included primarily symptomatic hospitalized patients instead of all patients with COVID-19). Additionally, most of the studies were retrospective cohort series and did not specify whether consecutive patients were included in the analysis. "}

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T121","span":{"begin":92,"end":98},"obj":"http://purl.obolibrary.org/obo/UBERON_0000473"}],"text":"risk of bias (ie, selection bias, detection bias, and attrition bias), heterogeneity of the tested patient populations (inconsistency), as well as issues of indirectness (the majority of studies included primarily symptomatic hospitalized patients instead of all patients with COVID-19). Additionally, most of the studies were retrospective cohort series and did not specify whether consecutive patients were included in the analysis. "}

{"project":"LitCovid-sentences","denotations":[{"id":"T131","span":{"begin":288,"end":434},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"risk of bias (ie, selection bias, detection bias, and attrition bias), heterogeneity of the tested patient populations (inconsistency), as well as issues of indirectness (the majority of studies included primarily symptomatic hospitalized patients instead of all patients with COVID-19). Additionally, most of the studies were retrospective cohort series and did not specify whether consecutive patients were included in the analysis. "}

{"project":"LitCovid-PubTator","denotations":[{"id":"369","span":{"begin":99,"end":106},"obj":"Species"},{"id":"370","span":{"begin":239,"end":247},"obj":"Species"},{"id":"371","span":{"begin":263,"end":271},"obj":"Species"},{"id":"372","span":{"begin":395,"end":403},"obj":"Species"},{"id":"375","span":{"begin":277,"end":285},"obj":"Disease"}],"attributes":[{"id":"A369","pred":"tao:has_database_id","subj":"369","obj":"Tax:9606"},{"id":"A370","pred":"tao:has_database_id","subj":"370","obj":"Tax:9606"},{"id":"A371","pred":"tao:has_database_id","subj":"371","obj":"Tax:9606"},{"id":"A372","pred":"tao:has_database_id","subj":"372","obj":"Tax:9606"},{"id":"A375","pred":"tao:has_database_id","subj":"375","obj":"MESH:C000657245"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"risk of bias (ie, selection bias, detection bias, and attrition bias), heterogeneity of the tested patient populations (inconsistency), as well as issues of indirectness (the majority of studies included primarily symptomatic hospitalized patients instead of all patients with COVID-19). Additionally, most of the studies were retrospective cohort series and did not specify whether consecutive patients were included in the analysis. "}