PMC:7784828 / 156-274 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T6","span":{"begin":19,"end":27},"obj":"Sentence"},{"id":"T7","span":{"begin":28,"end":36},"obj":"Sentence"},{"id":"T8","span":{"begin":37,"end":50},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ON DRUG DISCOVERY\n\nAbstract\nABSTRACT\nIntroduction: Despite advances in drug research and development, our knowledge of"}