PMC:7784828 / 176-294 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T7","span":{"begin":8,"end":16},"obj":"Sentence"},{"id":"T8","span":{"begin":17,"end":30},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"bstract\nABSTRACT\nIntroduction: Despite advances in drug research and development, our knowledge of the underlying mole"}