References
- Lue , T. F. 2000 . Erectile dysfunction . N. Engl. J. Med. , 342 : 1802 – 1813 .
- Feldman , H. A. , Goldstein , I. , Hatzichristou , D. G. , Krane , R. J. and McKinlay , J. B. 1994 . Impotence and its medical and physiological correlates: Results of the Massachusetts male aging study . J. Urol. , 151 : 54 – 61 .
- Brook , G. 2000 . Sildenafil citrate (Viagra) . Drugs Today , 36 ( 2–3 ) : 125 – 134 .
- Sorbera , L. A. , Martin , L. , Rabasseda , X. and Castaner , J. 2001 . Vardenafil treatment of erectile dysfunction . Drugs Future , 26 ( 2 ) : 141 – 144 .
- Sorbera , L. A. , Martin , L. , Leeson , P. A. and Castan , J. 2001 . IC‐351 Treatment of erectile dysfunction. Treatment of female sexual dysfunction, phosphodiesterase 5 inhibitor . Drugs Future , 26 ( 1 ) : 15 – 19 .
- Daugan , A. , Grondin , P. , Ruault , C. , Gouville , A. C. L. M. , Coste , H. , Kirilovsky , J. , Hyafil , F. and Labaudiniere , R. 2003 . The discovery of tadalafil: A novel and highly selective PDE5 inhibitor, 1: 5,6,11,11a‐Tetrahydro‐1H‐imidazo[1,5:1,6]pyrido[3,4‐b] indole‐1,3(2H)‐dione analogues . J. Med. Chem. , 46 : 4525 – 4532 .
- Daugan , A. , Grondin , P. , Ruault , C. , Coste , H. A. C. L. M. G. , Linget , J. M. , Kirilovsky , J. , Hyafil , F. and Labaudiniere , R. 2003 . The discovery of tadalafil: A novel and highly selective PDE5 inhibitor, 2: 2,3,6,7,12,12a‐Hexahydropyrazino[1,2:1,6]pyrido[3, 4‐b]indole‐1,4‐dione analogues . J. Med. Chem. , 46 : 4533 – 4542 .