2[1]Knoll LD, Abrams JH. Application of nocturnal electrobioimpedance volu metric assessment: a feasibility study in men without erectile dysfunction, J Urol, 1999, 161 (4): 1137-1140.
3[2]Knoll LD, Abrams JH. Nocturnal electrobioimpedance volumetric assess ment of patients with erectile dysfunction, Urology, 1999, 53 (6): 1200-1204.
4[3]Montorsi F, Medermott TED, Katsikas DM. et al. Efficacy and safety of fixed-dose oral sidenafil in the treatment of erectile dysfunction of various etiologies, Urology, 1999, 53 (5): 1011-1018.
