3. Borges F, Fernandes E, Roleira F: Progress Towards the Discovery of Xanthine Oxidase Inhibitors. Curr Med Chem 2002; 9: 195-217.
4. Kamatani N, Fujimori S, Hada T, Hosoya T, Matsuzawa Y, Ueda T, Yamanaka H, Kato R: Febuxostat, a Novel non-purine Selective Inhibitor of Xanthine Oxidase, in a Phase III Placebo-controlled Double-blind Clinical Trial in Japanese Subjects with Gout or Hyperuricemia. Arthritis Rheum 2004; 50 Suppl: S337.
5. Becker MA, Schumacher HR Jr, Wortmann RL, MacDonald PA, Eustace D, Palo WA, Streit J, Joseph-Ridge N: Febuxostat Compared with Allopurinol in Patients with Hyperuricemia and Gout. N Engl J Med 2005; 353: 2450-2461.