PMC:7594251 / 5949-6139 JSONTXT

{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T34","span":{"begin":5,"end":19},"obj":"Chemical"}],"attributes":[{"id":"A34","pred":"chebi_id","subj":"T34","obj":"http://purl.obolibrary.org/obo/CHEBI_52217"}],"text":"R in pharmaceutical patents are Bristol Myers, AstraZeneca, and Wyeth, with 146, 104, and 67 patent families, respectively.\nIn addition to the advantages provided by NMR, it is often used wi"}