PMC:7784828 / 475-661 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T12","span":{"begin":45,"end":174},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"hnologies, and policies are urgently needed. The main obstacles in drug discovery and development are the mounting cost, risk, and time frame needed to develop new medicines. Fair pricin"}