PMC:7696151 / 6744-6893 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T58","span":{"begin":36,"end":118},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"sing allograft or xenograft models. The most important outcomes of the review are graphically illustrated in Figure 3.\nThe assessment of bias risk ba"}