PMC:7784834 / 325-480 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T8","span":{"begin":8,"end":140},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" world. So far the researchers worldwide have not been able to discover a breakthrough in the form of a potent drug or an effective vaccine. Therefore, it "}