PMC:7228253 / 967-1053 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T11","span":{"begin":80,"end":81},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":" et al. 2020; Zhou et al. 2020, unpublished paper). The reason is that although a smal"}

{"project":"LitCovid-sentences","denotations":[{"id":"T12","span":{"begin":8,"end":25},"obj":"Sentence"},{"id":"T13","span":{"begin":26,"end":51},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" et al. 2020; Zhou et al. 2020, unpublished paper). The reason is that although a smal"}