PMC:7048180 / 143-157 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T3","span":{"begin":0,"end":2},"obj":"Sentence"},{"id":"T4","span":{"begin":3,"end":14},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"X. Tian et al."}