Authors: Olsson, AM Speakman, MJ Dinsmore, WW Giuliano, F Gingell, C Maytom, M Smith, MD Osterloh, I

Citation: Am. Olsson et al., Sildenafil citrate (Viagra (R)) is effective and well tolerated for treating erectile dysfunction of psychogenic or mixed aetiology, INT J CL PR, 54(9), 2000, pp. 561-566

Authors: Giuliano, F Hultling, C El Masry, WS Smith, MD Osterloh, IH Orr, M Maytom, M

Citation: F. Giuliano et al., Randomized trial of sildenafil for the treatment of erectile dysfunction in spinal cord injury, ANN NEUROL, 46(1), 1999, pp. 15-21