TY - JOUR AU - Burnett, A L; Strong, T D; Trock, B J TI - Serum biomarker measurements of endothelial function and oxidative stress after daily dosing of sildenafil in type 2 diabetic men with erectile dysfunction JO - J Urol VL - 181 PY - 2009 SP - 245 EP - 251 N1 - et al. ER -