PMC:7454258 / 362-468 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T1595","span":{"begin":91,"end":101},"obj":"http://purl.obolibrary.org/obo/BFO_0000030"}],"text":" challenges. However, the relevant characteristics of such an effort have been uncertain.\n\nObjectives\nOur "}

{"project":"LitCovid-sentences","denotations":[{"id":"T7","span":{"begin":13,"end":89},"obj":"Sentence"},{"id":"T8","span":{"begin":91,"end":101},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" challenges. However, the relevant characteristics of such an effort have been uncertain.\n\nObjectives\nOur "}