title: Intellectual property. Drug metabolite patents prompt legal battle.
authors: Eliot
authors: E
authors: Marshall
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage / Q000097:blood / Q000378:metabolism; D001379:Azathioprine / Q000008:administration & dosage* / Q000097:blood / Q000378:metabolism*; D001774:Blood Chemical Analysis; D006801:Humans; D010330:Patents as Topic / Q000331:legislation & jurisprudence*; D014481:United States
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D001379:Azathioprine