PMC:7784828 / 11491-11635 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T105","span":{"begin":0,"end":144},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The process of drug research and development is extremely slow taking at least 7 to 10 years for a lead candidate to reach the marketplace [28]."}