PMC:7696151 / 1509-1673 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"50","span":{"begin":68,"end":75},"obj":"Chemical"},{"id":"51","span":{"begin":80,"end":90},"obj":"Chemical"}],"attributes":[{"id":"A50","pred":"tao:has_database_id","subj":"50","obj":"MESH:D011803"},{"id":"A51","pred":"tao:has_database_id","subj":"51","obj":"MESH:C010086"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":" the special properties of cinchona bark to the Jesuits and in 1820 quinine and cinchonine were isolated and identified as the main alkaloids responsible for the an"}