Department of Urology;
Seoul National University College of Medicine;
SMG-SNU Boramae Medical Center;
Seoul 07061;
Korea;
Department of Urology;
Seoul National University College of Medicine;
Seoul National University Hospital;
Seoul 03080;
Korea;
Department of Biostatistics;
Seoul National University College of Medicine;
SMG-SNU Boramae Medical Center;
Seoul 07061;
Korea;
apoptosis; erectile; dysfunction; fibrosis; LIM; kinase; phosphodiesterase;