title: Erectile dysfunction after radical prostatectomy and its treatment.
mesh_terms: D007172:Erectile Dysfunction / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans; D008297:Male; D015917:Penile Prosthesis; D010413:Penis / Q000187:drug effects / Q000294:innervation; D010726:Phosphodiesterase Inhibitors; D010879:Piperazines / Q000627:therapeutic use; D011468:Prostatectomy / Q000009:adverse effects*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate